100420122 has 32 divisors (see below), whose sum is σ = 231989184. Its totient is φ = 28640000.

The previous prime is 100420097. The next prime is 100420141. The reversal of 100420122 is 221024001.

It is a junction number, because it is equal to n+sod(n) for n = 100420098 and 100420107.

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, 43629 + ... + 45872.

It is an arithmetic number, because the mean of its divisors is an integer number (7249662).

Almost surely, 2^100420122 is an apocalyptic number.

100420122 is an abundant number, since it is smaller than the sum of its proper divisors (131569062).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100420122 is a wasteful number, since it uses less digits than its factorization.

100420122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89534.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 100420122 is about 10020.9840834122. The cubic root of 100420122 is about 464.8079863946.

Adding to 100420122 its reverse (221024001), we get a palindrome (321444123).

The spelling of 100420122 in words is "one hundred million, four hundred twenty thousand, one hundred twenty-two".