102021212220202 has 32 divisors (see below), whose sum is σ = 171360024906240. Its totient is φ = 45161241008880.

The previous prime is 102021212220173. The next prime is 102021212220241. The reversal of 102021212220202 is 202022212120201.

It is a self number, because there is not a number n which added to its sum of digits gives 102021212220202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 367145118 + ... + 367422889.

It is an arithmetic number, because the mean of its divisors is an integer number (5355000778320).

Almost surely, 2^{102021212220202} is an apocalyptic number.

102021212220202 is a deficient number, since it is larger than the sum of its proper divisors (69338812686038).

102021212220202 is a wasteful number, since it uses less digits than its factorization.

102021212220202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734568186.

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

Adding to 102021212220202 its reverse (202022212120201), we get a palindrome (304043424340403).

The spelling of 102021212220202 in words is "one hundred two trillion, twenty-one billion, two hundred twelve million, two hundred twenty thousand, two hundred two".