21202020222010 has 32 divisors (see below), whose sum is σ = 38276146944000. Its totient is φ = 8455808978112.

The previous prime is 21202020221969. The next prime is 21202020222073. The reversal of 21202020222010 is 1022202020212.

It is a super-2 number, since 2×21202020222010² (a number of 27 digits) contains 22 as substring.

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, 54455047 + ... + 54843013.

It is an arithmetic number, because the mean of its divisors is an integer number (1196129592000).

Almost surely, 2^{21202020222010} is an apocalyptic number.

21202020222010 is a deficient number, since it is larger than the sum of its proper divisors (17074126721990).

21202020222010 is a wasteful number, since it uses less digits than its factorization.

21202020222010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404070.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 21202020222010 its reverse (1022202020212), we get a palindrome (22224222242222).

The spelling of 21202020222010 in words is "twenty-one trillion, two hundred two billion, twenty million, two hundred twenty-two thousand, ten".