21113161220301 has 32 divisors (see below), whose sum is σ = 28718816872320. Its totient is φ = 13795012320000.

The previous prime is 21113161220269. The next prime is 21113161220317. The reversal of 21113161220301 is 10302216131112.

It is not a de Polignac number, because 21113161220301 - 2⁵ = 21113161220269 is a prime.

It is a super-2 number, since 2×21113161220301² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21113161220101) 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, 11124526 + ... + 12883376.

It is an arithmetic number, because the mean of its divisors is an integer number (897463027260).

Almost surely, 2^{21113161220301} is an apocalyptic number.

It is an amenable number.

21113161220301 is a deficient number, since it is larger than the sum of its proper divisors (7605655652019).

21113161220301 is a wasteful number, since it uses less digits than its factorization.

21113161220301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1759357.

The product of its (nonzero) digits is 432, while the sum is 24.

Adding to 21113161220301 its reverse (10302216131112), we get a palindrome (31415377351413).

The spelling of 21113161220301 in words is "twenty-one trillion, one hundred thirteen billion, one hundred sixty-one million, two hundred twenty thousand, three hundred one".