201220102021011 has 16 divisors (see below), whose sum is σ = 276295447110144. Its totient is φ = 130165503777504.

The previous prime is 201220102020983. The next prime is 201220102021027. The reversal of 201220102021011 is 110120201022102.

It is not a de Polignac number, because 201220102021011 - 2¹³ = 201220102012819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201220102021031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2469705465 + ... + 2469786938.

It is an arithmetic number, because the mean of its divisors is an integer number (17268465444384).

Almost surely, 2^{201220102021011} is an apocalyptic number.

201220102021011 is a deficient number, since it is larger than the sum of its proper divisors (75075345089133).

201220102021011 is a wasteful number, since it uses less digits than its factorization.

201220102021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4939492810.

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

Adding to 201220102021011 its reverse (110120201022102), we get a palindrome (311340303043113).

The spelling of 201220102021011 in words is "two hundred one trillion, two hundred twenty billion, one hundred two million, twenty-one thousand, eleven".