21201131113302 has 64 divisors (see below), whose sum is σ = 53541183181824. Its totient is φ = 5453268648960.

The previous prime is 21201131113271. The next prime is 21201131113381. The reversal of 21201131113302 is 20331113110212.

It is a super-2 number, since 2×21201131113302² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 645493599 + ... + 645526442.

It is an arithmetic number, because the mean of its divisors is an integer number (836580987216).

Almost surely, 2^{21201131113302} is an apocalyptic number.

21201131113302 is an abundant number, since it is smaller than the sum of its proper divisors (32340052068522).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21201131113302 is a wasteful number, since it uses less digits than its factorization.

21201131113302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1291020093.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 21201131113302 its reverse (20331113110212), we get a palindrome (41532244223514).

The spelling of 21201131113302 in words is "twenty-one trillion, two hundred one billion, one hundred thirty-one million, one hundred thirteen thousand, three hundred two".