21232422423212 has 96 divisors (see below), whose sum is σ = 50346464931840. Its totient is φ = 7565980504320.

The previous prime is 21232422423211. The next prime is 21232422423229.

21232422423212 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (21232422423211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23888348 + ... + 24761219.

It is an arithmetic number, because the mean of its divisors is an integer number (524442343040).

Almost surely, 2^{21232422423212} is an apocalyptic number.

21232422423212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21232422423212 is an abundant number, since it is smaller than the sum of its proper divisors (29114042508628).

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

21232422423212 is a wasteful number, since it uses less digits than its factorization.

21232422423212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48649711 (or 48649709 counting only the distinct ones).

The product of its digits is 36864, while the sum is 32.

It can be divided in two parts, 2123242 and 2423212, that added together give a palindrome (4546454).

The spelling of 21232422423212 in words is "twenty-one trillion, two hundred thirty-two billion, four hundred twenty-two million, four hundred twenty-three thousand, two hundred twelve".