1020112211 has 4 divisors (see below), whose sum is σ = 1036835424. Its totient is φ = 1003389000.

The previous prime is 1020112189. The next prime is 1020112241. The reversal of 1020112211 is 1122110201.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1020112211 - 2¹⁰ = 1020111187 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020112192 and 1020112201.

It is not an unprimeable number, because it can be changed into a prime (1020112241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8361515 + ... + 8361636.

It is an arithmetic number, because the mean of its divisors is an integer number (259208856).

Almost surely, 2^1020112211 is an apocalyptic number.

1020112211 is a deficient number, since it is larger than the sum of its proper divisors (16723213).

1020112211 is an equidigital number, since it uses as much as digits as its factorization.

1020112211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16723212.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1020112211 is about 31939.1955283786. The cubic root of 1020112211 is about 1006.6596213245.

Adding to 1020112211 its reverse (1122110201), we get a palindrome (2142222412).

The spelling of 1020112211 in words is "one billion, twenty million, one hundred twelve thousand, two hundred eleven".