20211211100112 has 40 divisors (see below), whose sum is σ = 52947679792320. Its totient is φ = 6642182050560.

The previous prime is 20211211100107. The next prime is 20211211100207. The reversal of 20211211100112 is 21100111211202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20211211100091 and 20211211100100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2965256437 + ... + 2965263252.

It is an arithmetic number, because the mean of its divisors is an integer number (1323691994808).

Almost surely, 2^{20211211100112} is an apocalyptic number.

It is an amenable number.

20211211100112 is an abundant number, since it is smaller than the sum of its proper divisors (32736468692208).

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

20211211100112 is a wasteful number, since it uses less digits than its factorization.

20211211100112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5930519771 (or 5930519765 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 20211211100112 its reverse (21100111211202), we get a palindrome (41311322311314).

The spelling of 20211211100112 in words is "twenty trillion, two hundred eleven billion, two hundred eleven million, one hundred thousand, one hundred twelve".