21222202010102 has 8 divisors (see below), whose sum is σ = 31879371473112. Its totient is φ = 10595744852400.

The previous prime is 21222202010071. The next prime is 21222202010179. The reversal of 21222202010102 is 20101020222212.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7678074599 + ... + 7678077362.

It is an arithmetic number, because the mean of its divisors is an integer number (3984921434139).

Almost surely, 2^{21222202010102} is an apocalyptic number.

21222202010102 is a deficient number, since it is larger than the sum of its proper divisors (10657169463010).

21222202010102 is a wasteful number, since it uses less digits than its factorization.

21222202010102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15356152654.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 21222202010102 its reverse (20101020222212), we get a palindrome (41323222232314).

The spelling of 21222202010102 in words is "twenty-one trillion, two hundred twenty-two billion, two hundred two million, ten thousand, one hundred two".