211212011120 has 80 divisors (see below), whose sum is σ = 535809822048. Its totient is φ = 76790123520.

The previous prime is 211212011117. The next prime is 211212011203. The reversal of 211212011120 is 21110212112.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×211212011120² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211212011095 and 211212011104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5504642 + ... + 5542878.

Almost surely, 2^211212011120 is an apocalyptic number.

211212011120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211212011120 is an abundant number, since it is smaller than the sum of its proper divisors (324597810928).

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

211212011120 is a wasteful number, since it uses less digits than its factorization.

211212011120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44538 (or 44532 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 211212011120 its reverse (21110212112), we get a palindrome (232322223232).

The spelling of 211212011120 in words is "two hundred eleven billion, two hundred twelve million, eleven thousand, one hundred twenty".