122100212240 has 80 divisors (see below), whose sum is σ = 311816649600. Its totient is φ = 44257821696.

The previous prime is 122100212239. The next prime is 122100212243. The reversal of 122100212240 is 42212001221.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (122100212243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1711325 + ... + 1781244.

It is an arithmetic number, because the mean of its divisors is an integer number (3897708120).

Almost surely, 2^122100212240 is an apocalyptic number.

122100212240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122100212240 is an abundant number, since it is smaller than the sum of its proper divisors (189716437360).

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

122100212240 is a wasteful number, since it uses less digits than its factorization.

122100212240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3492624 (or 3492618 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 122100212240 its reverse (42212001221), we get a palindrome (164312213461).

The spelling of 122100212240 in words is "one hundred twenty-two billion, one hundred million, two hundred twelve thousand, two hundred forty".