21012201022202 has 64 divisors (see below), whose sum is σ = 37098701136000. Its totient is φ = 8837731784448.

The previous prime is 21012201022181. The next prime is 21012201022237. The reversal of 21012201022202 is 20222010221012.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1127453 + ... + 6579935.

It is an arithmetic number, because the mean of its divisors is an integer number (579667205250).

Almost surely, 2^{21012201022202} is an apocalyptic number.

21012201022202 is a deficient number, since it is larger than the sum of its proper divisors (16086500113798).

21012201022202 is a wasteful number, since it uses less digits than its factorization.

21012201022202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5452815.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 21012201022202 its reverse (20222010221012), we get a palindrome (41234211243214).

The spelling of 21012201022202 in words is "twenty-one trillion, twelve billion, two hundred one million, twenty-two thousand, two hundred two".