2221152012111 has 16 divisors (see below), whose sum is σ = 2963370874464. Its totient is φ = 1479850857984.

The previous prime is 2221152012089. The next prime is 2221152012193. The reversal of 2221152012111 is 1112102511222.

It is not a de Polignac number, because 2221152012111 - 2¹⁹ = 2221151487823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221152012011) 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, 35431651 + ... + 35494283.

It is an arithmetic number, because the mean of its divisors is an integer number (185210679654).

Almost surely, 2^{2221152012111} is an apocalyptic number.

2221152012111 is a deficient number, since it is larger than the sum of its proper divisors (742218862353).

2221152012111 is a wasteful number, since it uses less digits than its factorization.

2221152012111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69770.

The product of its (nonzero) digits is 160, while the sum is 21.

Adding to 2221152012111 its reverse (1112102511222), we get a palindrome (3333254523333).

The spelling of 2221152012111 in words is "two trillion, two hundred twenty-one billion, one hundred fifty-two million, twelve thousand, one hundred eleven".