2266120621438 has 32 divisors (see below), whose sum is σ = 3441134236320. Its totient is φ = 1119168785280.

The previous prime is 2266120621433. The next prime is 2266120621439. The reversal of 2266120621438 is 8341260216622.

It is a junction number, because it is equal to n+sod(n) for n = 2266120621394 and 2266120621403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2266120621433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49719756 + ... + 49765312.

It is an arithmetic number, because the mean of its divisors is an integer number (107535444885).

Almost surely, 2^{2266120621438} is an apocalyptic number.

2266120621438 is a deficient number, since it is larger than the sum of its proper divisors (1175013614882).

2266120621438 is a wasteful number, since it uses less digits than its factorization.

2266120621438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46572.

The product of its (nonzero) digits is 331776, while the sum is 43.

The spelling of 2266120621438 in words is "two trillion, two hundred sixty-six billion, one hundred twenty million, six hundred twenty-one thousand, four hundred thirty-eight".