2221131102111 has 40 divisors (see below), whose sum is σ = 3512222675280. Its totient is φ = 1396444831488.

The previous prime is 2221131102101. The next prime is 2221131102137. The reversal of 2221131102111 is 1112011311222.

It is a happy number.

It is not a de Polignac number, because 2221131102111 - 2⁷ = 2221131101983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221131102101) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 10893930 + ... + 11095943.

It is an arithmetic number, because the mean of its divisors is an integer number (87805566882).

Almost surely, 2^{2221131102111} is an apocalyptic number.

2221131102111 is a deficient number, since it is larger than the sum of its proper divisors (1291091573169).

2221131102111 is a wasteful number, since it uses less digits than its factorization.

2221131102111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21989957 (or 21989948 counting only the distinct ones).

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

Adding to 2221131102111 its reverse (1112011311222), we get a palindrome (3333142413333).

The spelling of 2221131102111 in words is "two trillion, two hundred twenty-one billion, one hundred thirty-one million, one hundred two thousand, one hundred eleven".