421204403124244 has 6 divisors (see below), whose sum is σ = 737107705467434. Its totient is φ = 210602201562120.

The previous prime is 421204403124227. The next prime is 421204403124257. The reversal of 421204403124244 is 442421304402124.

It can be written as a sum of positive squares in only one way, i.e., 421194021552144 + 10381572100 = 20523012^2 + 101890^2 .

It is a super-2 number, since 2×421204403124244² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52650550390527 + ... + 52650550390534.

Almost surely, 2^{421204403124244} is an apocalyptic number.

It is an amenable number.

421204403124244 is a deficient number, since it is larger than the sum of its proper divisors (315903302343190).

421204403124244 is a wasteful number, since it uses less digits than its factorization.

421204403124244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105301100781065 (or 105301100781063 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 37.

Adding to 421204403124244 its reverse (442421304402124), we get a palindrome (863625707526368).

The spelling of 421204403124244 in words is "four hundred twenty-one trillion, two hundred four billion, four hundred three million, one hundred twenty-four thousand, two hundred forty-four".