101111120202021 has 32 divisors (see below), whose sum is σ = 142182630953088. Its totient is φ = 63832371563520.

The previous prime is 101111120201933. The next prime is 101111120202023. The reversal of 101111120202021 is 120202021111101.

It is a happy number.

It is not a de Polignac number, because 101111120202021 - 2¹⁵ = 101111120169253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101111120202023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36352696 + ... + 39035121.

It is an arithmetic number, because the mean of its divisors is an integer number (4443207217284).

Almost surely, 2^{101111120202021} is an apocalyptic number.

It is an amenable number.

101111120202021 is a deficient number, since it is larger than the sum of its proper divisors (41071510751067).

101111120202021 is a wasteful number, since it uses less digits than its factorization.

101111120202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75388181.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 101111120202021 its reverse (120202021111101), we get a palindrome (221313141313122).

The spelling of 101111120202021 in words is "one hundred one trillion, one hundred eleven billion, one hundred twenty million, two hundred two thousand, twenty-one".