122185389190 has 16 divisors (see below), whose sum is σ = 221880018528. Its totient is φ = 48441640576.

The previous prime is 122185389113. The next prime is 122185389199. The reversal of 122185389190 is 91983581221.

It is a super-2 number, since 2×122185389190² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122185389199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54063202 + ... + 54065461.

It is an arithmetic number, because the mean of its divisors is an integer number (13867501158).

Almost surely, 2^122185389190 is an apocalyptic number.

122185389190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122185389190 is a deficient number, since it is larger than the sum of its proper divisors (99694629338).

122185389190 is a wasteful number, since it uses less digits than its factorization.

122185389190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108128783.

The product of its (nonzero) digits is 311040, while the sum is 49.

The spelling of 122185389190 in words is "one hundred twenty-two billion, one hundred eighty-five million, three hundred eighty-nine thousand, one hundred ninety".