2277225421 has 4 divisors (see below), whose sum is σ = 2338772092. Its totient is φ = 2215678752.

The previous prime is 2277225409. The next prime is 2277225427. The reversal of 2277225421 is 1245227722.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2108095396 + 169130025 = 45914^2 + 13005^2 .

It is a cyclic number.

It is not a de Polignac number, because 2277225421 - 2⁹ = 2277224909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2277225427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30773280 + ... + 30773353.

It is an arithmetic number, because the mean of its divisors is an integer number (584693023).

Almost surely, 2^2277225421 is an apocalyptic number.

It is an amenable number.

2277225421 is a deficient number, since it is larger than the sum of its proper divisors (61546671).

2277225421 is an equidigital number, since it uses as much as digits as its factorization.

2277225421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61546670.

The product of its digits is 31360, while the sum is 34.

The square root of 2277225421 is about 47720.2831194451. The cubic root of 2277225421 is about 1315.6347653230.

The spelling of 2277225421 in words is "two billion, two hundred seventy-seven million, two hundred twenty-five thousand, four hundred twenty-one".