226402021377 has 16 divisors (see below), whose sum is σ = 383326174080. Its totient is φ = 129372583536.

The previous prime is 226402021291. The next prime is 226402021421. The reversal of 226402021377 is 773120204622.

It is a happy number.

226402021377 is a `hidden beast` number, since 2 + 2 + 640 + 2 + 0 + 2 + 1 + 3 + 7 + 7 = 666.

It is not a de Polignac number, because 226402021377 - 2¹¹ = 226402019329 is a prime.

It is a super-2 number, since 2×226402021377² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (226402021277) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 598946958 + ... + 598947335.

It is an arithmetic number, because the mean of its divisors is an integer number (23957885880).

Almost surely, 2^226402021377 is an apocalyptic number.

226402021377 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

226402021377 is a deficient number, since it is larger than the sum of its proper divisors (156924152703).

226402021377 is a wasteful number, since it uses less digits than its factorization.

226402021377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197894309 (or 1197894303 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 36.

Adding to 226402021377 its reverse (773120204622), we get a palindrome (999522225999).

The spelling of 226402021377 in words is "two hundred twenty-six billion, four hundred two million, twenty-one thousand, three hundred seventy-seven".