102120221022212 has 24 divisors (see below), whose sum is σ = 189659766607416. Its totient is φ = 47945589424128.

The previous prime is 102120221022199. The next prime is 102120221022301. The reversal of 102120221022212 is 212220122021201.

It can be written as a sum of positive squares in 4 ways, for example, as 12855781566016 + 89264439456196 = 3585496^2 + 9447986^2 .

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, 1734113693 + ... + 1734172580.

It is an arithmetic number, because the mean of its divisors is an integer number (7902490275309).

Almost surely, 2^{102120221022212} is an apocalyptic number.

It is an amenable number.

102120221022212 is a deficient number, since it is larger than the sum of its proper divisors (87539545585204).

102120221022212 is a wasteful number, since it uses less digits than its factorization.

102120221022212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3468286727 (or 3468286725 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 102120221022212 its reverse (212220122021201), we get a palindrome (314340343043413).

The spelling of 102120221022212 in words is "one hundred two trillion, one hundred twenty billion, two hundred twenty-one million, twenty-two thousand, two hundred twelve".