22021021100002 has 8 divisors (see below), whose sum is σ = 33125105395116. Its totient is φ = 10979319301632.

The previous prime is 22021021099993. The next prime is 22021021100011. The reversal of 22021021100002 is 20000112012022.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22021021099993) and next prime (22021021100011).

It can be written as a sum of positive squares in 2 ways, for example, as 18523563817801 + 3497457282201 = 4303901^2 + 1870149^2 .

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

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, 15595623303 + ... + 15595624714.

Almost surely, 2^{22021021100002} is an apocalyptic number.

22021021100002 is a deficient number, since it is larger than the sum of its proper divisors (11104084295114).

22021021100002 is a wasteful number, since it uses less digits than its factorization.

22021021100002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31191248372.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22021021100002 its reverse (20000112012022), we get a palindrome (42021133112024).

The spelling of 22021021100002 in words is "twenty-two trillion, twenty-one billion, twenty-one million, one hundred thousand, two".