30021157122 has 32 divisors (see below), whose sum is σ = 65517306624. Its totient is φ = 9095014800.

The previous prime is 30021157109. The next prime is 30021157139. The reversal of 30021157122 is 22175112003.

It is a super-2 number, since 2×30021157122² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30021157092 and 30021157101.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214413 + ... + 325599.

It is an arithmetic number, because the mean of its divisors is an integer number (2047415832).

Almost surely, 2^30021157122 is an apocalyptic number.

30021157122 is an abundant number, since it is smaller than the sum of its proper divisors (35496149502).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30021157122 is a wasteful number, since it uses less digits than its factorization.

30021157122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115294.

The product of its (nonzero) digits is 840, while the sum is 24.

Adding to 30021157122 its reverse (22175112003), we get a palindrome (52196269125).

The spelling of 30021157122 in words is "thirty billion, twenty-one million, one hundred fifty-seven thousand, one hundred twenty-two".