121090922 has 4 divisors (see below), whose sum is σ = 181636386. Its totient is φ = 60545460.

The previous prime is 121090897. The next prime is 121090927. The reversal of 121090922 is 229090121.

It is a happy number.

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., 115326121 + 5764801 = 10739^2 + 2401^2 .

It is a super-2 number, since 2×121090922² = 29326022781620168, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121090891 and 121090900.

It is not an unprimeable number, because it can be changed into a prime (121090927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30272729 + ... + 30272732.

Almost surely, 2^121090922 is an apocalyptic number.

121090922 is a deficient number, since it is larger than the sum of its proper divisors (60545464).

121090922 is an equidigital number, since it uses as much as digits as its factorization.

121090922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60545463.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 121090922 is about 11004.1320421013. The cubic root of 121090922 is about 494.7325998536.

The spelling of 121090922 in words is "one hundred twenty-one million, ninety thousand, nine hundred twenty-two".