2101220102001 has 8 divisors (see below), whose sum is σ = 2801640278944. Its totient is φ = 1400806663200.

The previous prime is 2101220101993. The next prime is 2101220102027. The reversal of 2101220102001 is 1002010221012.

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

It is not a de Polignac number, because 2101220102001 - 2³ = 2101220101993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2101220102071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 905431 + ... + 2241036.

It is an arithmetic number, because the mean of its divisors is an integer number (350205034868).

Almost surely, 2^{2101220102001} is an apocalyptic number.

It is an amenable number.

2101220102001 is a deficient number, since it is larger than the sum of its proper divisors (700420176943).

2101220102001 is a wasteful number, since it uses less digits than its factorization.

2101220102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3369071.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2101220102001 its reverse (1002010221012), we get a palindrome (3103230323013).

The spelling of 2101220102001 in words is "two trillion, one hundred one billion, two hundred twenty million, one hundred two thousand, one".