20221020021210 has 64 divisors (see below), whose sum is σ = 49263136723584. Its totient is φ = 5311389081600.

The previous prime is 20221020021197. The next prime is 20221020021229. The reversal of 20221020021210 is 1212002012202.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20221020021210.

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, 15852351 + ... + 17080370.

It is an arithmetic number, because the mean of its divisors is an integer number (769736511306).

Almost surely, 2^{20221020021210} is an apocalyptic number.

20221020021210 is an abundant number, since it is smaller than the sum of its proper divisors (29042116702374).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20221020021210 is a wasteful number, since it uses less digits than its factorization.

20221020021210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32933039.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20221020021210 its reverse (1212002012202), we get a palindrome (21433022033412).

The spelling of 20221020021210 in words is "twenty trillion, two hundred twenty-one billion, twenty million, twenty-one thousand, two hundred ten".