20201011221210 has 16 divisors (see below), whose sum is σ = 48482426930976. Its totient is φ = 5386936325648.

The previous prime is 20201011221203. The next prime is 20201011221227. The reversal of 20201011221210 is 1212211010202.

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 20201011221210.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336683520324 + ... + 336683520383.

It is an arithmetic number, because the mean of its divisors is an integer number (3030151683186).

Almost surely, 2^{20201011221210} is an apocalyptic number.

20201011221210 is an abundant number, since it is smaller than the sum of its proper divisors (28281415709766).

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

20201011221210 is a wasteful number, since it uses less digits than its factorization.

20201011221210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673367040717.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20201011221210 its reverse (1212211010202), we get a palindrome (21413222231412).

The spelling of 20201011221210 in words is "twenty trillion, two hundred one billion, eleven million, two hundred twenty-one thousand, two hundred ten".