122011323030 has 112 divisors (see below), whose sum is σ = 339902504064. Its totient is φ = 31486734720.

The previous prime is 122011323023. The next prime is 122011323079. The reversal of 122011323030 is 30323110221.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 122011322994 and 122011323012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 43959 + ... + 495938.

Almost surely, 2^122011323030 is an apocalyptic number.

122011323030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 122011323030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169951252032).

122011323030 is an abundant number, since it is smaller than the sum of its proper divisors (217891181034).

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

122011323030 is an equidigital number, since it uses as much as digits as its factorization.

122011323030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539953 (or 539938 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 122011323030 its reverse (30323110221), we get a palindrome (152334433251).

The spelling of 122011323030 in words is "one hundred twenty-two billion, eleven million, three hundred twenty-three thousand, thirty".