202021011101 has 16 divisors (see below), whose sum is σ = 248710581504. Its totient is φ = 159796226304.

The previous prime is 202021011097. The next prime is 202021011133. The reversal of 202021011101 is 101110120202.

It is not a de Polignac number, because 202021011101 - 2² = 202021011097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202021011901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20501 + ... + 635973.

It is an arithmetic number, because the mean of its divisors is an integer number (15544411344).

Almost surely, 2^202021011101 is an apocalyptic number.

It is an amenable number.

202021011101 is a deficient number, since it is larger than the sum of its proper divisors (46689570403).

202021011101 is a wasteful number, since it uses less digits than its factorization.

202021011101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619100.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 202021011101 its reverse (101110120202), we get a palindrome (303131131303).

It can be divided in two parts, 20202 and 1011101, that multiplied together give a palindrome (20426262402).

The spelling of 202021011101 in words is "two hundred two billion, twenty-one million, eleven thousand, one hundred one".