21021211120022 has 32 divisors (see below), whose sum is σ = 32316827588640. Its totient is φ = 10249189908480.

The previous prime is 21021211120003. The next prime is 21021211120073. The reversal of 21021211120022 is 22002111212012.

It is a congruent number.

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, 2179940333 + ... + 2179949975.

It is an arithmetic number, because the mean of its divisors is an integer number (1009900862145).

Almost surely, 2^{21021211120022} is an apocalyptic number.

21021211120022 is a deficient number, since it is larger than the sum of its proper divisors (11295616468618).

21021211120022 is a wasteful number, since it uses less digits than its factorization.

21021211120022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20048.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 21021211120022 its reverse (22002111212012), we get a palindrome (43023322332034).

The spelling of 21021211120022 in words is "twenty-one trillion, twenty-one billion, two hundred eleven million, one hundred twenty thousand, twenty-two".