30122023220 has 24 divisors (see below), whose sum is σ = 63472152744. Its totient is φ = 12007684736.

The previous prime is 30122023219. The next prime is 30122023231. The reversal of 30122023220 is 2232022103.

It can be written as a sum of positive squares in 4 ways, for example, as 6772960804 + 23349062416 = 82298^2 + 152804^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2564279 + ... + 2575998.

It is an arithmetic number, because the mean of its divisors is an integer number (2644673031).

Almost surely, 2^30122023220 is an apocalyptic number.

It is an amenable number.

30122023220 is an abundant number, since it is smaller than the sum of its proper divisors (33350129524).

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

30122023220 is a wasteful number, since it uses less digits than its factorization.

30122023220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5140579 (or 5140577 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 30122023220 its reverse (2232022103), we get a palindrome (32354045323).

The spelling of 30122023220 in words is "thirty billion, one hundred twenty-two million, twenty-three thousand, two hundred twenty".