102200220020021 has 8 divisors (see below), whose sum is σ = 102970761939360. Its totient is φ = 101430182222928.

The previous prime is 102200220019991. The next prime is 102200220020023. The reversal of 102200220020021 is 120020022002201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102200220020021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102200220019978 and 102200220020005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102200220020023) 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, 125623571 + ... + 126434496.

It is an arithmetic number, because the mean of its divisors is an integer number (12871345242420).

Almost surely, 2^{102200220020021} is an apocalyptic number.

It is an amenable number.

102200220020021 is a deficient number, since it is larger than the sum of its proper divisors (770541919339).

102200220020021 is a wasteful number, since it uses less digits than its factorization.

102200220020021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252061123.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 102200220020021 its reverse (120020022002201), we get a palindrome (222220242022222).

The spelling of 102200220020021 in words is "one hundred two trillion, two hundred billion, two hundred twenty million, twenty thousand, twenty-one".