102212221220002 has 4 divisors (see below), whose sum is σ = 153318331830006. Its totient is φ = 51106110610000.

The previous prime is 102212221219991. The next prime is 102212221220033. The reversal of 102212221220002 is 200022122212201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 72854777321001 + 29357443899001 = 8535501^2 + 5418251^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25553055304999 + ... + 25553055305002.

Almost surely, 2^{102212221220002} is an apocalyptic number.

102212221220002 is a deficient number, since it is larger than the sum of its proper divisors (51106110610004).

102212221220002 is an equidigital number, since it uses as much as digits as its factorization.

102212221220002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51106110610003.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 102212221220002 its reverse (200022122212201), we get a palindrome (302234343432203).

The spelling of 102212221220002 in words is "one hundred two trillion, two hundred twelve billion, two hundred twenty-one million, two hundred twenty thousand, two".