100201021122122 has 16 divisors (see below), whose sum is σ = 163024329919752. Its totient is φ = 46003338247680.

The previous prime is 100201021122101. The next prime is 100201021122133. The reversal of 100201021122122 is 221221120102001.

It can be written as a sum of positive squares in 4 ways, for example, as 92294852494441 + 7906168627681 = 9607021^2 + 2811791^2 .

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 100201021122122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35940106613 + ... + 35940109400.

Almost surely, 2^{100201021122122} is an apocalyptic number.

100201021122122 is a deficient number, since it is larger than the sum of its proper divisors (62823308797630).

100201021122122 is a wasteful number, since it uses less digits than its factorization.

100201021122122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71880216073.

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

Adding to 100201021122122 its reverse (221221120102001), we get a palindrome (321422141224123).

The spelling of 100201021122122 in words is "one hundred trillion, two hundred one billion, twenty-one million, one hundred twenty-two thousand, one hundred twenty-two".