20212211312 has 20 divisors (see below), whose sum is σ = 39163509000. Its totient is φ = 10105499328.

The previous prime is 20212211309. The next prime is 20212211329. The reversal of 20212211312 is 21311221202.

It is a super-2 number, since 2×20212211312² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 370463 + ... + 421505.

It is an arithmetic number, because the mean of its divisors is an integer number (1958175450).

Almost surely, 2^20212211312 is an apocalyptic number.

It is an amenable number.

20212211312 is a deficient number, since it is larger than the sum of its proper divisors (18951297688).

20212211312 is a wasteful number, since it uses less digits than its factorization.

20212211312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75800 (or 75794 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 20212211312 its reverse (21311221202), we get a palindrome (41523432514).

The spelling of 20212211312 in words is "twenty billion, two hundred twelve million, two hundred eleven thousand, three hundred twelve".