1222101120111 has 32 divisors (see below), whose sum is σ = 1778081584320. Its totient is φ = 746083657728.

The previous prime is 1222101120103. The next prime is 1222101120131. The reversal of 1222101120111 is 1110211012221.

It is a happy number.

It is not a de Polignac number, because 1222101120111 - 2³ = 1222101120103 is a prime.

It is a super-2 number, since 2×1222101120111² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222101120131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 575146 + ... + 1665831.

It is an arithmetic number, because the mean of its divisors is an integer number (55565049510).

Almost surely, 2^{1222101120111} is an apocalyptic number.

1222101120111 is a deficient number, since it is larger than the sum of its proper divisors (555980464209).

1222101120111 is an equidigital number, since it uses as much as digits as its factorization.

1222101120111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2241068 (or 2241034 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1222101120111 its reverse (1110211012221), we get a palindrome (2332312132332).

The spelling of 1222101120111 in words is "one trillion, two hundred twenty-two billion, one hundred one million, one hundred twenty thousand, one hundred eleven".