23220220500061 has 32 divisors (see below), whose sum is σ = 26567928350208. Its totient is φ = 20104325176320.

The previous prime is 23220220500041. The next prime is 23220220500083. The reversal of 23220220500061 is 16000502202232.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 23220220500061 - 2⁷ = 23220220499933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23220220499999 and 23220220500035.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23220220500031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81409066 + ... + 81693796.

It is an arithmetic number, because the mean of its divisors is an integer number (830247760944).

Almost surely, 2^{23220220500061} is an apocalyptic number.

It is an amenable number.

23220220500061 is a deficient number, since it is larger than the sum of its proper divisors (3347707850147).

23220220500061 is a wasteful number, since it uses less digits than its factorization.

23220220500061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286021.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 23220220500061 its reverse (16000502202232), we get a palindrome (39220722702293).

The spelling of 23220220500061 in words is "twenty-three trillion, two hundred twenty billion, two hundred twenty million, five hundred thousand, sixty-one".