30101122021 has 4 divisors (see below), whose sum is σ = 30212196544. Its totient is φ = 29990047500.

The previous prime is 30101122013. The next prime is 30101122033. The reversal of 30101122021 is 12022110103.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30101122021 - 2³ = 30101122013 is a prime.

It is a super-2 number, since 2×30101122021² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30101121992 and 30101122010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30101122081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55536855 + ... + 55537396.

It is an arithmetic number, because the mean of its divisors is an integer number (7553049136).

Almost surely, 2^30101122021 is an apocalyptic number.

It is an amenable number.

30101122021 is a deficient number, since it is larger than the sum of its proper divisors (111074523).

30101122021 is a wasteful number, since it uses less digits than its factorization.

30101122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111074522.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 30101122021 its reverse (12022110103), we get a palindrome (42123232124).

The spelling of 30101122021 in words is "thirty billion, one hundred one million, one hundred twenty-two thousand, twenty-one".