2101122210212 has 6 divisors (see below), whose sum is σ = 3676963867878. Its totient is φ = 1050561105104.

The previous prime is 2101122210191. The next prime is 2101122210221. The reversal of 2101122210212 is 2120122211012.

It can be written as a sum of positive squares in only one way, i.e., 1801624324516 + 299497885696 = 1342246^2 + 547264^2 .

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 as a sum of consecutive naturals, namely, 262640276273 + ... + 262640276280.

It is an arithmetic number, because the mean of its divisors is an integer number (612827311313).

Almost surely, 2^{2101122210212} is an apocalyptic number.

It is an amenable number.

2101122210212 is a deficient number, since it is larger than the sum of its proper divisors (1575841657666).

2101122210212 is a wasteful number, since it uses less digits than its factorization.

2101122210212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525280552557 (or 525280552555 counting only the distinct ones).

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

Adding to 2101122210212 its reverse (2120122211012), we get a palindrome (4221244421224).

The spelling of 2101122210212 in words is "two trillion, one hundred one billion, one hundred twenty-two million, two hundred ten thousand, two hundred twelve".