1900112120122 has 4 divisors (see below), whose sum is σ = 2850168180186. Its totient is φ = 950056060060.

The previous prime is 1900112120117. The next prime is 1900112120171. The reversal of 1900112120122 is 2210212110091.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1043300859241 + 856811260881 = 1021421^2 + 925641^2 .

It is a super-2 number, since 2×1900112120122² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1900112120093 and 1900112120102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 475028030029 + ... + 475028030032.

Almost surely, 2^{1900112120122} is an apocalyptic number.

1900112120122 is a deficient number, since it is larger than the sum of its proper divisors (950056060064).

1900112120122 is an equidigital number, since it uses as much as digits as its factorization.

1900112120122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950056060063.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 1900112120122 in words is "one trillion, nine hundred billion, one hundred twelve million, one hundred twenty thousand, one hundred twenty-two".