122435221040 has 80 divisors (see below), whose sum is σ = 324042045696. Its totient is φ = 42586156800.

The previous prime is 122435221037. The next prime is 122435221061. The reversal of 122435221040 is 40122534221.

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

It is a super-2 number, since 2×122435221040² (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 15 ways as a sum of consecutive naturals, for example, 3004346 + ... + 3044825.

Almost surely, 2^122435221040 is an apocalyptic number.

122435221040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122435221040 is an abundant number, since it is smaller than the sum of its proper divisors (201606824656).

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

122435221040 is a wasteful number, since it uses less digits than its factorization.

122435221040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6049218 (or 6049212 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 122435221040 its reverse (40122534221), we get a palindrome (162557755261).

The spelling of 122435221040 in words is "one hundred twenty-two billion, four hundred thirty-five million, two hundred twenty-one thousand, forty".