30122111200 has 72 divisors (see below), whose sum is σ = 73574275320. Its totient is φ = 12042508800.

The previous prime is 30122111197. The next prime is 30122111209. The reversal of 30122111200 is 211122103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30122111209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1695966 + ... + 1713634.

It is an arithmetic number, because the mean of its divisors is an integer number (1021864935).

Almost surely, 2^30122111200 is an apocalyptic number.

It is an amenable number.

30122111200 is an abundant number, since it is smaller than the sum of its proper divisors (43452164120).

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

30122111200 is a wasteful number, since it uses less digits than its factorization.

30122111200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19820 (or 19807 counting only the distinct ones).

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

Adding to 30122111200 its reverse (211122103), we get a palindrome (30333233303).

The spelling of 30122111200 in words is "thirty billion, one hundred twenty-two million, one hundred eleven thousand, two hundred".