3421752201021 has 64 divisors (see below), whose sum is σ = 5939405844480. Its totient is φ = 1699106787840.

The previous prime is 3421752200939. The next prime is 3421752201041. The reversal of 3421752201021 is 1201022571243.

3421752201021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3421752201021 - 2¹³ = 3421752192829 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3421752201021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3421752201041) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7716625 + ... + 8147993.

It is an arithmetic number, because the mean of its divisors is an integer number (92803216320).

Almost surely, 2^{3421752201021} is an apocalyptic number.

It is an amenable number.

3421752201021 is a deficient number, since it is larger than the sum of its proper divisors (2517653643459).

3421752201021 is a wasteful number, since it uses less digits than its factorization.

3421752201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432906.

The product of its (nonzero) digits is 6720, while the sum is 30.

Adding to 3421752201021 its reverse (1201022571243), we get a palindrome (4622774772264).

The spelling of 3421752201021 in words is "three trillion, four hundred twenty-one billion, seven hundred fifty-two million, two hundred one thousand, twenty-one".