2111010121201 has 4 divisors (see below), whose sum is σ = 2235187187172. Its totient is φ = 1986833055232.

The previous prime is 2111010121189. The next prime is 2111010121267. The reversal of 2111010121201 is 1021210101112.

It is a happy number.

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 826006504801 + 1285003616400 = 908849^2 + 1133580^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111010121201 - 2¹⁵ = 2111010088433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2111010121501) 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, 62088532960 + ... + 62088532993.

It is an arithmetic number, because the mean of its divisors is an integer number (558796796793).

Almost surely, 2^{2111010121201} is an apocalyptic number.

It is an amenable number.

2111010121201 is a deficient number, since it is larger than the sum of its proper divisors (124177065971).

2111010121201 is a wasteful number, since it uses less digits than its factorization.

2111010121201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124177065970.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 2111010121201 its reverse (1021210101112), we get a palindrome (3132220222313).

The spelling of 2111010121201 in words is "two trillion, one hundred eleven billion, ten million, one hundred twenty-one thousand, two hundred one".