122100000030 has 48 divisors (see below), whose sum is σ = 317485484784. Its totient is φ = 32557386240.

The previous prime is 122100000023. The next prime is 122100000073. The reversal of 122100000030 is 30000001221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 122099999958 and 122100000021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1243950 + ... + 1338510.

It is an arithmetic number, because the mean of its divisors is an integer number (6614280933).

Almost surely, 2^122100000030 is an apocalyptic number.

122100000030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122100000030 is an abundant number, since it is smaller than the sum of its proper divisors (195385484754).

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

122100000030 is a wasteful number, since it uses less digits than its factorization.

122100000030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108921 (or 108918 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

Adding to 122100000030 its reverse (30000001221), we get a palindrome (152100001251).

The spelling of 122100000030 in words is "one hundred twenty-two billion, one hundred million, thirty", and thus it is an aban number.