212011312 has 10 divisors (see below), whose sum is σ = 410771948. Its totient is φ = 106005648.

The previous prime is 212011307. The next prime is 212011333. The reversal of 212011312 is 213110212.

It is a super-2 number, since 2×212011312² = 89897592831922688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212011292 and 212011301.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6625338 + ... + 6625369.

Almost surely, 2^212011312 is an apocalyptic number.

It is an amenable number.

212011312 is a deficient number, since it is larger than the sum of its proper divisors (198760636).

212011312 is a wasteful number, since it uses less digits than its factorization.

212011312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13250715 (or 13250709 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 212011312 is about 14560.6082290542. The cubic root of 212011312 is about 596.2838009983.

Adding to 212011312 its reverse (213110212), we get a palindrome (425121524).

The spelling of 212011312 in words is "two hundred twelve million, eleven thousand, three hundred twelve".