20211222120112 has 10 divisors (see below), whose sum is σ = 39159242857748. Its totient is φ = 10105611060048.

The previous prime is 20211222120101. The next prime is 20211222120121. The reversal of 20211222120112 is 21102122211202.

It is a self number, because there is not a number n which added to its sum of digits gives 20211222120112.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631600691238 + ... + 631600691269.

Almost surely, 2^{20211222120112} is an apocalyptic number.

It is an amenable number.

20211222120112 is a deficient number, since it is larger than the sum of its proper divisors (18948020737636).

20211222120112 is a wasteful number, since it uses less digits than its factorization.

20211222120112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263201382515 (or 1263201382509 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 20211222120112 its reverse (21102122211202), we get a palindrome (41313344331314).

The spelling of 20211222120112 in words is "twenty trillion, two hundred eleven billion, two hundred twenty-two million, one hundred twenty thousand, one hundred twelve".