2101222101122 has 32 divisors (see below), whose sum is σ = 3370019582592. Its totient is φ = 979098672384.

The previous prime is 2101222101091. The next prime is 2101222101239. The reversal of 2101222101122 is 2211012221012.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 2101222101122.

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, 36157133 + ... + 36215199.

It is an arithmetic number, because the mean of its divisors is an integer number (105313111956).

Almost surely, 2^{2101222101122} is an apocalyptic number.

2101222101122 is a deficient number, since it is larger than the sum of its proper divisors (1268797481470).

2101222101122 is a wasteful number, since it uses less digits than its factorization.

2101222101122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68522.

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

Adding to 2101222101122 its reverse (2211012221012), we get a palindrome (4312234322134).

The spelling of 2101222101122 in words is "two trillion, one hundred one billion, two hundred twenty-two million, one hundred one thousand, one hundred twenty-two".