212211124 has 6 divisors (see below), whose sum is σ = 371369474. Its totient is φ = 106105560.

The previous prime is 212211113. The next prime is 212211127. The reversal of 212211124 is 421112212.

It can be written as a sum of positive squares in only one way, i.e., 164352400 + 47858724 = 12820^2 + 6918^2 .

It is a super-2 number, since 2×212211124² = 90067122298686752, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 212211098 and 212211107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212211127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26526387 + ... + 26526394.

Almost surely, 2^212211124 is an apocalyptic number.

It is an amenable number.

212211124 is a deficient number, since it is larger than the sum of its proper divisors (159158350).

212211124 is a wasteful number, since it uses less digits than its factorization.

212211124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53052785 (or 53052783 counting only the distinct ones).

The product of its digits is 64, while the sum is 16.

The square root of 212211124 is about 14567.4680023675. The cubic root of 212211124 is about 596.4710665545.

Adding to 212211124 its reverse (421112212), we get a palindrome (633323336).

The spelling of 212211124 in words is "two hundred twelve million, two hundred eleven thousand, one hundred twenty-four".