30221032102021 has 16 divisors (see below), whose sum is σ = 31922774794240. Its totient is φ = 28564777830960.

The previous prime is 30221032102013. The next prime is 30221032102033. The reversal of 30221032102021 is 12020123012203.

It is not a de Polignac number, because 30221032102021 - 2³ = 30221032102013 is a prime.

It is a super-2 number, since 2×30221032102021² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30221032102021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30221032102721) 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, 31009600 + ... + 31969318.

It is an arithmetic number, because the mean of its divisors is an integer number (1995173424640).

Almost surely, 2^{30221032102021} is an apocalyptic number.

30221032102021 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

30221032102021 is a deficient number, since it is larger than the sum of its proper divisors (1701742692219).

30221032102021 is a wasteful number, since it uses less digits than its factorization.

30221032102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983416.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 30221032102021 its reverse (12020123012203), we get a palindrome (42241155114224).

The spelling of 30221032102021 in words is "thirty trillion, two hundred twenty-one billion, thirty-two million, one hundred two thousand, twenty-one".