2102020111201 has 4 divisors (see below), whose sum is σ = 2103946803504. Its totient is φ = 2100093418900.

The previous prime is 2102020111171. The next prime is 2102020111223. The reversal of 2102020111201 is 1021110202012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2102020111201 - 2⁷ = 2102020111073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2102020115201) 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, 963344515 + ... + 963346696.

It is an arithmetic number, because the mean of its divisors is an integer number (525986700876).

Almost surely, 2^{2102020111201} is an apocalyptic number.

It is an amenable number.

2102020111201 is a deficient number, since it is larger than the sum of its proper divisors (1926692303).

2102020111201 is a wasteful number, since it uses less digits than its factorization.

2102020111201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1926692302.

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

Adding to 2102020111201 its reverse (1021110202012), we get a palindrome (3123130313213).

The spelling of 2102020111201 in words is "two trillion, one hundred two billion, twenty million, one hundred eleven thousand, two hundred one".