122111020122 has 128 divisors (see below), whose sum is σ = 306053744640. Its totient is φ = 31620637440.

The previous prime is 122111020103. The next prime is 122111020159. The reversal of 122111020122 is 221020111221.

It is a super-2 number, since 2×122111020122² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20613453 + ... + 20619375.

It is an arithmetic number, because the mean of its divisors is an integer number (2391044880).

Almost surely, 2^122111020122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122111020122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153026872320).

122111020122 is an abundant number, since it is smaller than the sum of its proper divisors (183942724518).

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

122111020122 is a wasteful number, since it uses less digits than its factorization.

122111020122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6628.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 122111020122 its reverse (221020111221), we get a palindrome (343131131343).

The spelling of 122111020122 in words is "one hundred twenty-two billion, one hundred eleven million, twenty thousand, one hundred twenty-two".