102212112220002 has 28 divisors (see below), whose sum is σ = 229872096004230. Its totient is φ = 34070704072848.

The previous prime is 102212112219991. The next prime is 102212112220003. The reversal of 102212112220002 is 200022211212201.

It is a happy number.

102212112220002 is a `hidden beast` number, since 10 + 221 + 211 + 2 + 220 + 0 + 0 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 101537645874921 + 674466345081 = 10076589^2 + 821259^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (102212112220003) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 35052163227 + ... + 35052166142.

Almost surely, 2^{102212112220002} is an apocalyptic number.

102212112220002 is an abundant number, since it is smaller than the sum of its proper divisors (127659983784228).

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

102212112220002 is an frugal number, since it uses more digits than its factorization.

102212112220002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70104329389 (or 70104329374 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 102212112220002 its reverse (200022211212201), we get a palindrome (302234323432203).

The spelling of 102212112220002 in words is "one hundred two trillion, two hundred twelve billion, one hundred twelve million, two hundred twenty thousand, two".