30202011021 has 64 divisors (see below), whose sum is σ = 49988943872. Its totient is φ = 15794237952.

The previous prime is 30202011017. The next prime is 30202011041. The reversal of 30202011021 is 12011020203.

It is not a de Polignac number, because 30202011021 - 2² = 30202011017 is a prime.

It is a super-2 number, since 2×30202011021² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30202010988 and 30202011006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30202011001) 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, 17227881 + ... + 17229633.

It is an arithmetic number, because the mean of its divisors is an integer number (781077248).

Almost surely, 2^30202011021 is an apocalyptic number.

It is an amenable number.

30202011021 is a deficient number, since it is larger than the sum of its proper divisors (19786932851).

30202011021 is a wasteful number, since it uses less digits than its factorization.

30202011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2282.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 30202011021 its reverse (12011020203), we get a palindrome (42213031224).

The spelling of 30202011021 in words is "thirty billion, two hundred two million, eleven thousand, twenty-one".