2111020202201 has 4 divisors (see below), whose sum is σ = 2235197861172. Its totient is φ = 1986842543232.

The previous prime is 2111020202149. The next prime is 2111020202231. The reversal of 2111020202201 is 1022020201112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1985154192025 + 125866010176 = 1408955^2 + 354776^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111020202201 - 2²² = 2111016007897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2111020202231) 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, 62088829460 + ... + 62088829493.

It is an arithmetic number, because the mean of its divisors is an integer number (558799465293).

Almost surely, 2^{2111020202201} is an apocalyptic number.

It is an amenable number.

2111020202201 is a deficient number, since it is larger than the sum of its proper divisors (124177658971).

2111020202201 is a wasteful number, since it uses less digits than its factorization.

2111020202201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124177658970.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2111020202201 its reverse (1022020201112), we get a palindrome (3133040403313).

The spelling of 2111020202201 in words is "two trillion, one hundred eleven billion, twenty million, two hundred two thousand, two hundred one".