101421120122 has 12 divisors (see below), whose sum is σ = 176969505690. Its totient is φ = 43466194296.

The previous prime is 101421120109. The next prime is 101421120127. The reversal of 101421120122 is 221021124101.

It can be written as a sum of positive squares in only one way, i.e., 70729934401 + 30691185721 = 265951^2 + 175189^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 101421120122.

It is not an unprimeable number, because it can be changed into a prime (101421120127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 517454597 + ... + 517454792.

Almost surely, 2^101421120122 is an apocalyptic number.

101421120122 is a deficient number, since it is larger than the sum of its proper divisors (75548385568).

101421120122 is a wasteful number, since it uses less digits than its factorization.

101421120122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034909405 (or 1034909398 counting only the distinct ones).

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

Adding to 101421120122 its reverse (221021124101), we get a palindrome (322442244223).

The spelling of 101421120122 in words is "one hundred one billion, four hundred twenty-one million, one hundred twenty thousand, one hundred twenty-two".