2101022121112 has 64 divisors (see below), whose sum is σ = 4240661437440. Its totient is φ = 972247449600.

The previous prime is 2101022121101. The next prime is 2101022121127. The reversal of 2101022121112 is 2111212201012.

It is a super-2 number, since 2×2101022121112² (a number of 25 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 15 ways as a sum of consecutive naturals, for example, 32878312 + ... + 32942152.

It is an arithmetic number, because the mean of its divisors is an integer number (66260334960).

Almost surely, 2^{2101022121112} is an apocalyptic number.

It is an amenable number.

2101022121112 is an abundant number, since it is smaller than the sum of its proper divisors (2139639316328).

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

2101022121112 is a wasteful number, since it uses less digits than its factorization.

2101022121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67892 (or 67888 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2101022121112 its reverse (2111212201012), we get a palindrome (4212234322124).

The spelling of 2101022121112 in words is "two trillion, one hundred one billion, twenty-two million, one hundred twenty-one thousand, one hundred twelve".