42120223124210 has 192 divisors, whose sum is σ = 97692508045440. Its totient is φ = 12926578452480.

The previous prime is 42120223124117. The next prime is 42120223124237. The reversal of 42120223124210 is 1242132202124.

It is a happy number.

It is a super-2 number, since 2×42120223124210² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42120223124210.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 833823914 + ... + 833874426.

It is an arithmetic number, because the mean of its divisors is an integer number (508815146070).

Almost surely, 2^{42120223124210} is an apocalyptic number.

42120223124210 is an abundant number, since it is smaller than the sum of its proper divisors (55572284921230).

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

42120223124210 is a wasteful number, since it uses less digits than its factorization.

42120223124210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52921 (or 52914 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 42120223124210 its reverse (1242132202124), we get a palindrome (43362355326334).

The spelling of 42120223124210 in words is "forty-two trillion, one hundred twenty billion, two hundred twenty-three million, one hundred twenty-four thousand, two hundred ten".