122100012240 has 40 divisors (see below), whose sum is σ = 378510038688. Its totient is φ = 32560003200.

The previous prime is 122100012217. The next prime is 122100012269. The reversal of 122100012240 is 42210001221.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254374786 + ... + 254375265.

Almost surely, 2^122100012240 is an apocalyptic number.

122100012240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122100012240 is an abundant number, since it is smaller than the sum of its proper divisors (256410026448).

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

122100012240 is a wasteful number, since it uses less digits than its factorization.

122100012240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508750067 (or 508750061 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 122100012240 its reverse (42210001221), we get a palindrome (164310013461).

The spelling of 122100012240 in words is "one hundred twenty-two billion, one hundred million, twelve thousand, two hundred forty".