190722120190 has 32 divisors (see below), whose sum is σ = 393141786624. Its totient is φ = 65257251360.

The previous prime is 190722120179. The next prime is 190722120221. The reversal of 190722120190 is 91021227091.

It is a happy number.

It is a super-2 number, since 2×190722120190² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 2740174 + ... + 2808913.

It is an arithmetic number, because the mean of its divisors is an integer number (12285680832).

Almost surely, 2^190722120190 is an apocalyptic number.

190722120190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190722120190 is an abundant number, since it is smaller than the sum of its proper divisors (202419666434).

190722120190 is a wasteful number, since it uses less digits than its factorization.

190722120190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5549592.

The product of its (nonzero) digits is 4536, while the sum is 34.

The spelling of 190722120190 in words is "one hundred ninety billion, seven hundred twenty-two million, one hundred twenty thousand, one hundred ninety".