102201112221212 has 24 divisors (see below), whose sum is σ = 184621799413632. Its totient is φ = 49452034449600.

The previous prime is 102201112221193. The next prime is 102201112221269. The reversal of 102201112221212 is 212122211102201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76837262 + ... + 78156042.

It is an arithmetic number, because the mean of its divisors is an integer number (7692574975568).

Almost surely, 2^{102201112221212} is an apocalyptic number.

It is an amenable number.

102201112221212 is a deficient number, since it is larger than the sum of its proper divisors (82420687192420).

102201112221212 is a wasteful number, since it uses less digits than its factorization.

102201112221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1943789 (or 1943787 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 102201112221212 its reverse (212122211102201), we get a palindrome (314323323323413).

The spelling of 102201112221212 in words is "one hundred two trillion, two hundred one billion, one hundred twelve million, two hundred twenty-one thousand, two hundred twelve".