22201141620761 has 4 divisors (see below), whose sum is σ = 22296425490612. Its totient is φ = 22105857750912.

The previous prime is 22201141620743. The next prime is 22201141620767. The reversal of 22201141620761 is 16702614110222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6980063604361 + 15221078016400 = 2641981^2 + 3901420^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22201141620761 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22201141620767) 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, 47641934576 + ... + 47641935041.

It is an arithmetic number, because the mean of its divisors is an integer number (5574106372653).

Almost surely, 2^{22201141620761} is an apocalyptic number.

It is an amenable number.

22201141620761 is a deficient number, since it is larger than the sum of its proper divisors (95283869851).

22201141620761 is an equidigital number, since it uses as much as digits as its factorization.

22201141620761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95283869850.

The product of its (nonzero) digits is 16128, while the sum is 35.

Adding to 22201141620761 its reverse (16702614110222), we get a palindrome (38903755730983).

The spelling of 22201141620761 in words is "twenty-two trillion, two hundred one billion, one hundred forty-one million, six hundred twenty thousand, seven hundred sixty-one".