42520020122240 has 64 divisors (see below), whose sum is σ = 102655853192520. Its totient is φ = 16839611904000.

The previous prime is 42520020122231. The next prime is 42520020122273. The reversal of 42520020122240 is 4222102002524.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 41402635822144 + 1117384300096 = 6434488^2 + 1057064^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×42520020122240² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328834031 + ... + 328963310.

Almost surely, 2^{42520020122240} is an apocalyptic number.

42520020122240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42520020122240 is an abundant number, since it is smaller than the sum of its proper divisors (60135833070280).

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

42520020122240 is a wasteful number, since it uses less digits than its factorization.

42520020122240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657797461 (or 657797449 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 26.

Adding to 42520020122240 its reverse (4222102002524), we get a palindrome (46742122124764).

The spelling of 42520020122240 in words is "forty-two trillion, five hundred twenty billion, twenty million, one hundred twenty-two thousand, two hundred forty".