2112154212 has 48 divisors (see below), whose sum is σ = 5747369600. Its totient is φ = 603471456.

The previous prime is 2112154211. The next prime is 2112154223. The reversal of 2112154212 is 2124512112.

It is a super-2 number, since 2×2112154212² = 8922390830538681888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (2112154211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 252463 + ... + 260694.

Almost surely, 2^2112154212 is an apocalyptic number.

It is an amenable number.

2112154212 is an abundant number, since it is smaller than the sum of its proper divisors (3635215388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2112154212 is a wasteful number, since it uses less digits than its factorization.

2112154212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513185 (or 513169 counting only the distinct ones).

The product of its digits is 320, while the sum is 21.

The square root of 2112154212 is about 45958.1789456458. The cubic root of 2112154212 is about 1283.0449585290.

Adding to 2112154212 its reverse (2124512112), we get a palindrome (4236666324).

The spelling of 2112154212 in words is "two billion, one hundred twelve million, one hundred fifty-four thousand, two hundred twelve".