30020122131021 has 84 divisors (see below), whose sum is σ = 49490957456640. Its totient is φ = 18187539994800.

The previous prime is 30020122131019. The next prime is 30020122131071. The reversal of 30020122131021 is 12013122102003.

30020122131021 is a `hidden beast` number, since 300 + 2 + 0 + 12 + 21 + 310 + 21 = 666.

It is not a de Polignac number, because 30020122131021 - 2¹ = 30020122131019 is a prime.

It is a super-2 number, since 2×30020122131021² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30020122130985 and 30020122131003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30020122131071) by changing a digit.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 253894606 + ... + 254012816.

It is an arithmetic number, because the mean of its divisors is an integer number (589178064960).

Almost surely, 2^{30020122131021} is an apocalyptic number.

It is an amenable number.

30020122131021 is a deficient number, since it is larger than the sum of its proper divisors (19470835325619).

30020122131021 is a wasteful number, since it uses less digits than its factorization.

30020122131021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121130 (or 121104 counting only the distinct ones).

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

Adding to 30020122131021 its reverse (12013122102003), we get a palindrome (42033244233024).

The spelling of 30020122131021 in words is "thirty trillion, twenty billion, one hundred twenty-two million, one hundred thirty-one thousand, twenty-one".