21222000210102 has 32 divisors (see below), whose sum is σ = 44654334014304. Its totient is φ = 6714937440000.

The previous prime is 21222000210091. The next prime is 21222000210113. The reversal of 21222000210102 is 20101200022212.

It is an interprime number because it is at equal distance from previous prime (21222000210091) and next prime (21222000210113).

It is a congruent number.

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, 1165778649 + ... + 1165796852.

It is an arithmetic number, because the mean of its divisors is an integer number (1395447937947).

Almost surely, 2^{21222000210102} is an apocalyptic number.

21222000210102 is an abundant number, since it is smaller than the sum of its proper divisors (23432333804202).

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

21222000210102 is a wasteful number, since it uses less digits than its factorization.

21222000210102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2331575584.

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

Adding to 21222000210102 its reverse (20101200022212), we get a palindrome (41323200232314).

The spelling of 21222000210102 in words is "twenty-one trillion, two hundred twenty-two billion, two hundred ten thousand, one hundred two".