2001220120102 has 8 divisors (see below), whose sum is σ = 3430663063056. Its totient is φ = 857665765752.

The previous prime is 2001220120073. The next prime is 2001220120111. The reversal of 2001220120102 is 2010210221002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71472147133 + ... + 71472147160.

It is an arithmetic number, because the mean of its divisors is an integer number (428832882882).

Almost surely, 2^{2001220120102} is an apocalyptic number.

2001220120102 is a deficient number, since it is larger than the sum of its proper divisors (1429442942954).

2001220120102 is a wasteful number, since it uses less digits than its factorization.

2001220120102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142944294302.

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

Adding to 2001220120102 its reverse (2010210221002), we get a palindrome (4011430341104).

The spelling of 2001220120102 in words is "two trillion, one billion, two hundred twenty million, one hundred twenty thousand, one hundred two".