2211012121201 has 4 divisors (see below), whose sum is σ = 2381089976692. Its totient is φ = 2040934265712.

The previous prime is 2211012121189. The next prime is 2211012121217. The reversal of 2211012121201 is 1021212101122.

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 1132945231201 + 1078066890000 = 1064399^2 + 1038300^2 .

It is a cyclic number.

It is not a de Polignac number, because 2211012121201 - 2⁵ = 2211012121169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2211012121271) 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, 85038927726 + ... + 85038927751.

It is an arithmetic number, because the mean of its divisors is an integer number (595272494173).

Almost surely, 2^{2211012121201} is an apocalyptic number.

It is an amenable number.

2211012121201 is a deficient number, since it is larger than the sum of its proper divisors (170077855491).

2211012121201 is a wasteful number, since it uses less digits than its factorization.

2211012121201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170077855490.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2211012121201 its reverse (1021212101122), we get a palindrome (3232224222323).

The spelling of 2211012121201 in words is "two trillion, two hundred eleven billion, twelve million, one hundred twenty-one thousand, two hundred one".