102001220221312 has 16 divisors (see below), whose sum is σ = 203205555909900. Its totient is φ = 51000610110592.

The previous prime is 102001220221297. The next prime is 102001220221321. The reversal of 102001220221312 is 213122022100201.

It is a tau number, because it is divible by the number of its divisors (16).

It is a self number, because there is not a number n which added to its sum of digits gives 102001220221312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 398442266362 + ... + 398442266617.

Almost surely, 2^{102001220221312} is an apocalyptic number.

It is an amenable number.

102001220221312 is a deficient number, since it is larger than the sum of its proper divisors (101204335688588).

102001220221312 is an frugal number, since it uses more digits than its factorization.

102001220221312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796884532993 (or 796884532981 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 102001220221312 its reverse (213122022100201), we get a palindrome (315123242321513).

The spelling of 102001220221312 in words is "one hundred two trillion, one billion, two hundred twenty million, two hundred twenty-one thousand, three hundred twelve".