30122121000 has 64 divisors (see below), whose sum is σ = 93981026880. Its totient is φ = 8032564800.

The previous prime is 30122120999. The next prime is 30122121011. The reversal of 30122121000 is 12122103.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 5017354 + ... + 5023353.

It is an arithmetic number, because the mean of its divisors is an integer number (1468453545).

Almost surely, 2^30122121000 is an apocalyptic number.

30122121000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30122121000 is an abundant number, since it is smaller than the sum of its proper divisors (63858905880).

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

30122121000 is a wasteful number, since it uses less digits than its factorization.

30122121000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10040731 (or 10040717 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 30122121000 its reverse (12122103), we get a palindrome (30134243103).

The spelling of 30122121000 in words is "thirty billion, one hundred twenty-two million, one hundred twenty-one thousand".