101204122428 has 36 divisors (see below), whose sum is σ = 266944209168. Its totient is φ = 32267980800.

The previous prime is 101204122427. The next prime is 101204122469. The reversal of 101204122428 is 824221402101.

101204122428 is a `hidden beast` number, since 1 + 0 + 1 + 2 + 0 + 412 + 242 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×101204122428² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101204122427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61112773 + ... + 61114428.

Almost surely, 2^101204122428 is an apocalyptic number.

101204122428 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

101204122428 is an abundant number, since it is smaller than the sum of its proper divisors (165740086740).

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

101204122428 is a wasteful number, since it uses less digits than its factorization.

101204122428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122227234 (or 122227229 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

Adding to 101204122428 its reverse (824221402101), we get a palindrome (925425524529).

The spelling of 101204122428 in words is "one hundred one billion, two hundred four million, one hundred twenty-two thousand, four hundred twenty-eight".