30031020202221 has 12 divisors (see below), whose sum is σ = 44301079447872. Its totient is φ = 19594708216776.

The previous prime is 30031020202207. The next prime is 30031020202229. The reversal of 30031020202221 is 12220202013003.

It is not a de Polignac number, because 30031020202221 - 2³⁵ = 29996660463853 is a prime.

It is a super-3 number, since 3×30031020202221³ (a number of 41 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30031020202194 and 30031020202203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30031020202229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35497659391 + ... + 35497660236.

It is an arithmetic number, because the mean of its divisors is an integer number (3691756620656).

Almost surely, 2^{30031020202221} is an apocalyptic number.

It is an amenable number.

30031020202221 is a deficient number, since it is larger than the sum of its proper divisors (14270059245651).

30031020202221 is a wasteful number, since it uses less digits than its factorization.

30031020202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70995319680 (or 70995319677 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 30031020202221 its reverse (12220202013003), we get a palindrome (42251222215224).

The spelling of 30031020202221 in words is "thirty trillion, thirty-one billion, twenty million, two hundred two thousand, two hundred twenty-one".