120217826690 has 32 divisors (see below), whose sum is σ = 243169710336. Its totient is φ = 42458201280.

The previous prime is 120217826657. The next prime is 120217826719. The reversal of 120217826690 is 96628712021.

It is a happy number.

It is a super-2 number, since 2×120217826690² (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, 20100326 + ... + 20106305.

It is an arithmetic number, because the mean of its divisors is an integer number (7599053448).

Almost surely, 2^120217826690 is an apocalyptic number.

120217826690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120217826690 is an abundant number, since it is smaller than the sum of its proper divisors (122951883646).

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

120217826690 is a wasteful number, since it uses less digits than its factorization.

120217826690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40206674.

The product of its (nonzero) digits is 145152, while the sum is 44.

The spelling of 120217826690 in words is "one hundred twenty billion, two hundred seventeen million, eight hundred twenty-six thousand, six hundred ninety".