30212020113021 has 6 divisors (see below), whose sum is σ = 43639584607710. Its totient is φ = 20141346742008.

The previous prime is 30212020112969. The next prime is 30212020113047. The reversal of 30212020113021 is 12031102021203.

30212020113021 is a `hidden beast` number, since 302 + 12 + 0 + 201 + 130 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 30185739164025 + 26280948996 = 5494155^2 + 162114^2 .

It is not a de Polignac number, because 30212020113021 - 2¹¹ = 30212020110973 is a prime.

It is a super-2 number, since 2×30212020113021² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30212020112985 and 30212020113003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30212020113091) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1678445561826 + ... + 1678445561843.

It is an arithmetic number, because the mean of its divisors is an integer number (7273264101285).

Almost surely, 2^{30212020113021} is an apocalyptic number.

It is an amenable number.

30212020113021 is a deficient number, since it is larger than the sum of its proper divisors (13427564494689).

30212020113021 is a wasteful number, since it uses less digits than its factorization.

30212020113021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3356891123675 (or 3356891123672 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 30212020113021 its reverse (12031102021203), we get a palindrome (42243122134224).

The spelling of 30212020113021 in words is "thirty trillion, two hundred twelve billion, twenty million, one hundred thirteen thousand, twenty-one".