202101022011 has 48 divisors (see below), whose sum is σ = 332817099264. Its totient is φ = 106655797248.

The previous prime is 202101021973. The next prime is 202101022063. The reversal of 202101022011 is 110220101202.

It is not a de Polignac number, because 202101022011 - 2¹⁰ = 202101020987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (202101022111) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 157435 + ... + 654971.

It is an arithmetic number, because the mean of its divisors is an integer number (6933689568).

Almost surely, 2^202101022011 is an apocalyptic number.

202101022011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

202101022011 is a deficient number, since it is larger than the sum of its proper divisors (130716077253).

202101022011 is a wasteful number, since it uses less digits than its factorization.

202101022011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497628 (or 497599 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 202101022011 its reverse (110220101202), we get a palindrome (312321123213).

The spelling of 202101022011 in words is "two hundred two billion, one hundred one million, twenty-two thousand, eleven".