445421122 has 4 divisors (see below), whose sum is σ = 668131686. Its totient is φ = 222710560.

The previous prime is 445421101. The next prime is 445421143. The reversal of 445421122 is 221124544.

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

It is an interprime number because it is at equal distance from previous prime (445421101) and next prime (445421143).

It can be written as a sum of positive squares in only one way, i.e., 445252201 + 168921 = 21101^2 + 411^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111355279 + ... + 111355282.

Almost surely, 2^445421122 is an apocalyptic number.

445421122 is a deficient number, since it is larger than the sum of its proper divisors (222710564).

445421122 is a wasteful number, since it uses less digits than its factorization.

445421122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222710563.

The product of its digits is 2560, while the sum is 25.

The square root of 445421122 is about 21105.0022980335. The cubic root of 445421122 is about 763.7014277440.

Adding to 445421122 its reverse (221124544), we get a palindrome (666545666).

The spelling of 445421122 in words is "four hundred forty-five million, four hundred twenty-one thousand, one hundred twenty-two".