42200121124 has 12 divisors (see below), whose sum is σ = 84400242304. Its totient is φ = 18085766184.

The previous prime is 42200121109. The next prime is 42200121143. The reversal of 42200121124 is 42112100224.

42200121124 is an admirable number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 753573564 + ... + 753573619.

Almost surely, 2^42200121124 is an apocalyptic number.

It is an amenable number.

42200121124 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

42200121124 is a wasteful number, since it uses less digits than its factorization.

42200121124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1507147194 (or 1507147192 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 42200121124 its reverse (42112100224), we get a palindrome (84312221348).

The spelling of 42200121124 in words is "forty-two billion, two hundred million, one hundred twenty-one thousand, one hundred twenty-four".