2100010120001 has 64 divisors (see below), whose sum is σ = 2279970201600. Its totient is φ = 1930577677056.

The previous prime is 2100010119997. The next prime is 2100010120007. The reversal of 2100010120001 is 1000210100012.

It is a cyclic number.

It is not a de Polignac number, because 2100010120001 - 2² = 2100010119997 is a prime.

It is a super-2 number, since 2×2100010120001² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2100010120007) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2668373330 + ... + 2668374116.

It is an arithmetic number, because the mean of its divisors is an integer number (35624534400).

Almost surely, 2^{2100010120001} is an apocalyptic number.

It is an amenable number.

2100010120001 is a deficient number, since it is larger than the sum of its proper divisors (179960081599).

2100010120001 is a wasteful number, since it uses less digits than its factorization.

2100010120001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1278.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 2100010120001 its reverse (1000210100012), we get a palindrome (3100220220013).

The spelling of 2100010120001 in words is "two trillion, one hundred billion, ten million, one hundred twenty thousand, one".