122201786860 has 24 divisors (see below), whose sum is σ = 262591748496. Its totient is φ = 47743953600.

The previous prime is 122201786857. The next prime is 122201786897. The reversal of 122201786860 is 68687102221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71046691 + ... + 71048410.

It is an arithmetic number, because the mean of its divisors is an integer number (10941322854).

Almost surely, 2^122201786860 is an apocalyptic number.

122201786860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122201786860 is an abundant number, since it is smaller than the sum of its proper divisors (140389961636).

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

122201786860 is a wasteful number, since it uses less digits than its factorization.

122201786860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142095153 (or 142095151 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 43.

The spelling of 122201786860 in words is "one hundred twenty-two billion, two hundred one million, seven hundred eighty-six thousand, eight hundred sixty".