2201121213111 has 16 divisors (see below), whose sum is σ = 3267963358720. Its totient is φ = 1464244772760.

The previous prime is 2201121213041. The next prime is 2201121213113. The reversal of 2201121213111 is 1113121211022.

It is a happy number.

2201121213111 is a `hidden beast` number, since 220 + 1 + 12 + 121 + 311 + 1 = 666.

It is not a de Polignac number, because 2201121213111 - 2³³ = 2192531278519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201121213113) 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, 88025305 + ... + 88050306.

It is an arithmetic number, because the mean of its divisors is an integer number (204247709920).

Almost surely, 2^{2201121213111} is an apocalyptic number.

2201121213111 is a deficient number, since it is larger than the sum of its proper divisors (1066842145609).

2201121213111 is a wasteful number, since it uses less digits than its factorization.

2201121213111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176076083 (or 176076077 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 2201121213111 its reverse (1113121211022), we get a palindrome (3314242424133).

The spelling of 2201121213111 in words is "two trillion, two hundred one billion, one hundred twenty-one million, two hundred thirteen thousand, one hundred eleven".