102101220021122 has 24 divisors (see below), whose sum is σ = 178368554105280. Its totient is φ = 43705511140200.

The previous prime is 102101220021107. The next prime is 102101220021133. The reversal of 102101220021122 is 221120022101201.

It is a super-2 number, since 2×102101220021122² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 102101220021122.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 620805254 + ... + 620969697.

It is an arithmetic number, because the mean of its divisors is an integer number (7432023087720).

Almost surely, 2^{102101220021122} is an apocalyptic number.

102101220021122 is a deficient number, since it is larger than the sum of its proper divisors (76267334084158).

102101220021122 is a wasteful number, since it uses less digits than its factorization.

102101220021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1241775806 (or 1241775799 counting only the distinct ones).

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

Adding to 102101220021122 its reverse (221120022101201), we get a palindrome (323221242122323).

The spelling of 102101220021122 in words is "one hundred two trillion, one hundred one billion, two hundred twenty million, twenty-one thousand, one hundred twenty-two".