2220773065261 has 4 divisors (see below), whose sum is σ = 2248884116800. Its totient is φ = 2192662013724.

The previous prime is 2220773065241. The next prime is 2220773065289. The reversal of 2220773065261 is 1625603770222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2220773065261 - 2⁵ = 2220773065229 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 (2220773065241) 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, 14055525651 + ... + 14055525808.

It is an arithmetic number, because the mean of its divisors is an integer number (562221029200).

Almost surely, 2^{2220773065261} is an apocalyptic number.

It is an amenable number.

2220773065261 is a deficient number, since it is larger than the sum of its proper divisors (28111051539).

2220773065261 is an equidigital number, since it uses as much as digits as its factorization.

2220773065261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28111051538.

The product of its (nonzero) digits is 423360, while the sum is 43.

The spelling of 2220773065261 in words is "two trillion, two hundred twenty billion, seven hundred seventy-three million, sixty-five thousand, two hundred sixty-one".