21221110000202 has 32 divisors (see below), whose sum is σ = 36739933672320. Its totient is φ = 9004542868800.

The previous prime is 21221110000141. The next prime is 21221110000247. The reversal of 21221110000202 is 20200001112212.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97993748 + ... + 98210064.

It is an arithmetic number, because the mean of its divisors is an integer number (1148122927260).

Almost surely, 2^{21221110000202} is an apocalyptic number.

21221110000202 is a deficient number, since it is larger than the sum of its proper divisors (15518823672118).

21221110000202 is a wasteful number, since it uses less digits than its factorization.

21221110000202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285806.

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

Adding to 21221110000202 its reverse (20200001112212), we get a palindrome (41421111112414).

The spelling of 21221110000202 in words is "twenty-one trillion, two hundred twenty-one billion, one hundred ten million, two hundred two", and thus it is an aban number.