2194010233261 has 16 divisors (see below), whose sum is σ = 2752812259200. Its totient is φ = 1698729065280.

The previous prime is 2194010233249. The next prime is 2194010233291. The reversal of 2194010233261 is 1623320104912.

It is a cyclic number.

It is not a de Polignac number, because 2194010233261 - 2¹⁵ = 2194010200493 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 (2194010233231) 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, 90731986 + ... + 90756163.

It is an arithmetic number, because the mean of its divisors is an integer number (172050766200).

Almost surely, 2^{2194010233261} is an apocalyptic number.

It is an amenable number.

2194010233261 is a deficient number, since it is larger than the sum of its proper divisors (558802025939).

2194010233261 is a wasteful number, since it uses less digits than its factorization.

2194010233261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181488324.

The product of its (nonzero) digits is 15552, while the sum is 34.

It can be divided in two parts, 21940 and 10233261, that added together give a palindrome (10255201).

The spelling of 2194010233261 in words is "two trillion, one hundred ninety-four billion, ten million, two hundred thirty-three thousand, two hundred sixty-one".