2102121001201 has 16 divisors (see below), whose sum is σ = 2266974549504. Its totient is φ = 1937718607104.

The previous prime is 2102121001199. The next prime is 2102121001207. The reversal of 2102121001201 is 1021001212012.

It is a cyclic number.

It is not a de Polignac number, because 2102121001201 - 2¹ = 2102121001199 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2102121001207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72414976 + ... + 72443998.

It is an arithmetic number, because the mean of its divisors is an integer number (141685909344).

Almost surely, 2^{2102121001201} is an apocalyptic number.

It is an amenable number.

2102121001201 is a deficient number, since it is larger than the sum of its proper divisors (164853548303).

2102121001201 is a wasteful number, since it uses less digits than its factorization.

2102121001201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36600.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2102121001201 its reverse (1021001212012), we get a palindrome (3123122213213).

The spelling of 2102121001201 in words is "two trillion, one hundred two billion, one hundred twenty-one million, one thousand, two hundred one".