21201012000022 has 8 divisors (see below), whose sum is σ = 31828862387016. Its totient is φ = 10591391204352.

The previous prime is 21201012000013. The next prime is 21201012000067. The reversal of 21201012000022 is 22000021010212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 21201011999966 and 21201012000011.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 4557394923 + ... + 4557399574.

It is an arithmetic number, because the mean of its divisors is an integer number (3978607798377).

Almost surely, 2^{21201012000022} is an apocalyptic number.

21201012000022 is a deficient number, since it is larger than the sum of its proper divisors (10627850386994).

21201012000022 is a wasteful number, since it uses less digits than its factorization.

21201012000022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9114795662.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 21201012000022 its reverse (22000021010212), we get a palindrome (43201033010234).

The spelling of 21201012000022 in words is "twenty-one trillion, two hundred one billion, twelve million, twenty-two", and thus it is an aban number.