20022121620623 has 8 divisors (see below), whose sum is σ = 20563435687200. Its totient is φ = 19480816798560.

The previous prime is 20022121620619. The next prime is 20022121620667. The reversal of 20022121620623 is 32602612122002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20022121620623 - 2² = 20022121620619 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 (20022121620673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2196353 + ... + 6698373.

It is an arithmetic number, because the mean of its divisors is an integer number (2570429460900).

Almost surely, 2^{20022121620623} is an apocalyptic number.

20022121620623 is a deficient number, since it is larger than the sum of its proper divisors (541314066577).

20022121620623 is a wasteful number, since it uses less digits than its factorization.

20022121620623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4622257.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 20022121620623 its reverse (32602612122002), we get a palindrome (52624733742625).

The spelling of 20022121620623 in words is "twenty trillion, twenty-two billion, one hundred twenty-one million, six hundred twenty thousand, six hundred twenty-three".