21202021010113 has 8 divisors (see below), whose sum is σ = 21562087750560. Its totient is φ = 20841977951520.

The previous prime is 21202021010111. The next prime is 21202021010123. The reversal of 21202021010113 is 31101012020212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21202021010113 - 2¹ = 21202021010111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21202021010111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4110028 + ... + 7700413.

It is an arithmetic number, because the mean of its divisors is an integer number (2695260968820).

Almost surely, 2^{21202021010113} is an apocalyptic number.

It is an amenable number.

21202021010113 is a deficient number, since it is larger than the sum of its proper divisors (360066740447).

21202021010113 is a wasteful number, since it uses less digits than its factorization.

21202021010113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11840927.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 21202021010113 its reverse (31101012020212), we get a palindrome (52303033030325).

The spelling of 21202021010113 in words is "twenty-one trillion, two hundred two billion, twenty-one million, ten thousand, one hundred thirteen".