221402523332012 has 24 divisors (see below), whose sum is σ = 430652592557712. Its totient is φ = 98738689649600.

The previous prime is 221402523332009. The next prime is 221402523332051. The reversal of 221402523332012 is 210233325204122.

It is a happy number.

221402523332012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 221402523332012.

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, 47470521539 + ... + 47470526202.

It is an arithmetic number, because the mean of its divisors is an integer number (17943858023238).

Almost surely, 2^{221402523332012} is an apocalyptic number.

221402523332012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

221402523332012 is a deficient number, since it is larger than the sum of its proper divisors (209250069225700).

221402523332012 is a wasteful number, since it uses less digits than its factorization.

221402523332012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94941047809 (or 94941047807 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 221402523332012 its reverse (210233325204122), we get a palindrome (431635848536134).

The spelling of 221402523332012 in words is "two hundred twenty-one trillion, four hundred two billion, five hundred twenty-three million, three hundred thirty-two thousand, twelve".