2001220102102 has 16 divisors (see below), whose sum is σ = 3232785159072. Its totient is φ = 923627191680.

The previous prime is 2001220102087. The next prime is 2001220102171. The reversal of 2001220102102 is 2012010221002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

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, 1516702 + ... + 2510542.

It is an arithmetic number, because the mean of its divisors is an integer number (202049072442).

Almost surely, 2^{2001220102102} is an apocalyptic number.

2001220102102 is a deficient number, since it is larger than the sum of its proper divisors (1231565056970).

2001220102102 is a wasteful number, since it uses less digits than its factorization.

2001220102102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071303.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2001220102102 its reverse (2012010221002), we get a palindrome (4013230323104).

The spelling of 2001220102102 in words is "two trillion, one billion, two hundred twenty million, one hundred two thousand, one hundred two".