21222102100002 has 32 divisors (see below), whose sum is σ = 43919951474880. Its totient is φ = 6828211199040.

The previous prime is 21222102099983. The next prime is 21222102100021. The reversal of 21222102100002 is 20000120122212.

It is an interprime number because it is at equal distance from previous prime (21222102099983) and next prime (21222102100021).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16250124 + ... + 17507447.

It is an arithmetic number, because the mean of its divisors is an integer number (1372498483590).

Almost surely, 2^{21222102100002} is an apocalyptic number.

21222102100002 is an abundant number, since it is smaller than the sum of its proper divisors (22697849374878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21222102100002 is a wasteful number, since it uses less digits than its factorization.

21222102100002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33761218.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 21222102100002 its reverse (20000120122212), we get a palindrome (41222222222214).

The spelling of 21222102100002 in words is "twenty-one trillion, two hundred twenty-two billion, one hundred two million, one hundred thousand, two".