21022010012012 has 24 divisors (see below), whose sum is σ = 38986331758416. Its totient is φ = 9884130582528.

The previous prime is 21022010011999. The next prime is 21022010012027. The reversal of 21022010012012 is 21021001022012.

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, 133983698 + ... + 134140505.

It is an arithmetic number, because the mean of its divisors is an integer number (1624430489934).

Almost surely, 2^{21022010012012} is an apocalyptic number.

It is an amenable number.

21022010012012 is a deficient number, since it is larger than the sum of its proper divisors (17964321746404).

21022010012012 is a wasteful number, since it uses less digits than its factorization.

21022010012012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268125377 (or 268125375 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21022010012012 its reverse (21021001022012), we get a palindrome (42043011034024).

The spelling of 21022010012012 in words is "twenty-one trillion, twenty-two billion, ten million, twelve thousand, twelve".