2101121102212 has 24 divisors (see below), whose sum is σ = 4015900919520. Its totient is φ = 953943207360.

The previous prime is 2101121102207. The next prime is 2101121102261. The reversal of 2101121102212 is 2122011211012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27757753 + ... + 27833344.

It is an arithmetic number, because the mean of its divisors is an integer number (167329204980).

Almost surely, 2^{2101121102212} is an apocalyptic number.

2101121102212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2101121102212 is a deficient number, since it is larger than the sum of its proper divisors (1914779817308).

2101121102212 is a wasteful number, since it uses less digits than its factorization.

2101121102212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55591971 (or 55591969 counting only the distinct ones).

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

Adding to 2101121102212 its reverse (2122011211012), we get a palindrome (4223132313224).

The spelling of 2101121102212 in words is "two trillion, one hundred one billion, one hundred twenty-one million, one hundred two thousand, two hundred twelve".