20011222012112 has 80 divisors (see below), whose sum is σ = 39323426389632. Its totient is φ = 9864538944000.

The previous prime is 20011222012099. The next prime is 20011222012127. The reversal of 20011222012112 is 21121022211002.

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, 165764318 + ... + 165884994.

Almost surely, 2^{20011222012112} is an apocalyptic number.

It is an amenable number.

20011222012112 is a deficient number, since it is larger than the sum of its proper divisors (19312204377520).

20011222012112 is a wasteful number, since it uses less digits than its factorization.

20011222012112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121356 (or 121350 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20011222012112 its reverse (21121022211002), we get a palindrome (41132244223114).

The spelling of 20011222012112 in words is "twenty trillion, eleven billion, two hundred twenty-two million, twelve thousand, one hundred twelve".