22131142100420 has 48 divisors (see below), whose sum is σ = 49211018640000. Its totient is φ = 8331423849984.

The previous prime is 22131142100401. The next prime is 22131142100447. The reversal of 22131142100420 is 2400124113122.

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 15 ways as a sum of consecutive naturals, for example, 8390831 + ... + 10708329.

It is an arithmetic number, because the mean of its divisors is an integer number (1025229555000).

Almost surely, 2^{22131142100420} is an apocalyptic number.

22131142100420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22131142100420 is an abundant number, since it is smaller than the sum of its proper divisors (27079876539580).

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

22131142100420 is a wasteful number, since it uses less digits than its factorization.

22131142100420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2345612 (or 2345610 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 22131142100420 its reverse (2400124113122), we get a palindrome (24531266213542).

The spelling of 22131142100420 in words is "twenty-two trillion, one hundred thirty-one billion, one hundred forty-two million, one hundred thousand, four hundred twenty".