101902229821 has 16 divisors (see below), whose sum is σ = 123319269504. Its totient is φ = 82200835584.

The previous prime is 101902229773. The next prime is 101902229843. The reversal of 101902229821 is 128922209101.

It is not a de Polignac number, because 101902229821 - 2⁹ = 101902229309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101902227821) 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, 2386566 + ... + 2428888.

It is an arithmetic number, because the mean of its divisors is an integer number (7707454344).

Almost surely, 2^101902229821 is an apocalyptic number.

It is an amenable number.

101902229821 is a deficient number, since it is larger than the sum of its proper divisors (21417039683).

101902229821 is a wasteful number, since it uses less digits than its factorization.

101902229821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62580.

The product of its (nonzero) digits is 10368, while the sum is 37.

The spelling of 101902229821 in words is "one hundred one billion, nine hundred two million, two hundred twenty-nine thousand, eight hundred twenty-one".