901219922 has 4 divisors (see below), whose sum is σ = 1351829886. Its totient is φ = 450609960.

The previous prime is 901219909. The next prime is 901219933. The reversal of 901219922 is 229912109.

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., 897062401 + 4157521 = 29951^2 + 2039^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225304979 + ... + 225304982.

Almost surely, 2^901219922 is an apocalyptic number.

901219922 is a deficient number, since it is larger than the sum of its proper divisors (450609964).

901219922 is a wasteful number, since it uses less digits than its factorization.

901219922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450609963.

The product of its (nonzero) digits is 5832, while the sum is 35.

The square root of 901219922 is about 30020.3251481392. The cubic root of 901219922 is about 965.9254179295.

The spelling of 901219922 in words is "nine hundred one million, two hundred nineteen thousand, nine hundred twenty-two".