122122112221100 has 36 divisors (see below), whose sum is σ = 265186618506600. Its totient is φ = 48815363784960.

The previous prime is 122122112221091. The next prime is 122122112221121. The reversal of 122122112221100 is 1122211221221.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 418367165 + ... + 418658964.

Almost surely, 2^{122122112221100} is an apocalyptic number.

122122112221100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122122112221100 is an abundant number, since it is smaller than the sum of its proper divisors (143064506285500).

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

122122112221100 is a wasteful number, since it uses less digits than its factorization.

122122112221100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837027602 (or 837027595 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 122122112221100 its reverse (1122211221221), we get a palindrome (123244323442321).

The spelling of 122122112221100 in words is "one hundred twenty-two trillion, one hundred twenty-two billion, one hundred twelve million, two hundred twenty-one thousand, one hundred".