42522100212331 has 4 divisors (see below), whose sum is σ = 42524046236664. Its totient is φ = 42520154188000.

The previous prime is 42522100212311. The next prime is 42522100212349. The reversal of 42522100212331 is 13321200122524.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42522100212331 - 2⁷ = 42522100212203 is a prime.

It is a super-2 number, since 2×42522100212331² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42522100212331.

It is not an unprimeable number, because it can be changed into a prime (42522100212311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 972979390 + ... + 973023091.

It is an arithmetic number, because the mean of its divisors is an integer number (10631011559166).

Almost surely, 2^{42522100212331} is an apocalyptic number.

42522100212331 is a deficient number, since it is larger than the sum of its proper divisors (1946024333).

42522100212331 is a wasteful number, since it uses less digits than its factorization.

42522100212331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1946024332.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 42522100212331 its reverse (13321200122524), we get a palindrome (55843300334855).

The spelling of 42522100212331 in words is "forty-two trillion, five hundred twenty-two billion, one hundred million, two hundred twelve thousand, three hundred thirty-one".