21301220701 has 16 divisors (see below), whose sum is σ = 22815590400. Its totient is φ = 19826574768.

The previous prime is 21301220693. The next prime is 21301220719. The reversal of 21301220701 is 10702210312.

It is a cyclic number.

It is not a de Polignac number, because 21301220701 - 2³ = 21301220693 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21301220741) 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, 2397870 + ... + 2406736.

It is an arithmetic number, because the mean of its divisors is an integer number (1425974400).

Almost surely, 2^21301220701 is an apocalyptic number.

It is an amenable number.

21301220701 is a deficient number, since it is larger than the sum of its proper divisors (1514369699).

21301220701 is a wasteful number, since it uses less digits than its factorization.

21301220701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11088.

The product of its (nonzero) digits is 168, while the sum is 19.

The spelling of 21301220701 in words is "twenty-one billion, three hundred one million, two hundred twenty thousand, seven hundred one".