2001021202102 has 8 divisors (see below), whose sum is σ = 3232418864976. Its totient is φ = 923548247112.

The previous prime is 2001021202073. The next prime is 2001021202109. The reversal of 2001021202102 is 2012021201002.

It is a happy number.

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

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001021202109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38481176938 + ... + 38481176989.

It is an arithmetic number, because the mean of its divisors is an integer number (404052358122).

Almost surely, 2^{2001021202102} is an apocalyptic number.

2001021202102 is a deficient number, since it is larger than the sum of its proper divisors (1231397662874).

2001021202102 is a wasteful number, since it uses less digits than its factorization.

2001021202102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76962353942.

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

Adding to 2001021202102 its reverse (2012021201002), we get a palindrome (4013042403104).

The spelling of 2001021202102 in words is "two trillion, one billion, twenty-one million, two hundred two thousand, one hundred two".