1220111112107 has 2 divisors, whose sum is σ = 1220111112108. Its totient is φ = 1220111112106.

The previous prime is 1220111112053. The next prime is 1220111112131. The reversal of 1220111112107 is 7012111110221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1220111112107 - 2³⁰ = 1219037370283 is a prime.

It is a super-2 number, since 2×1220111112107² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1220111612107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610055556053 + 610055556054.

It is an arithmetic number, because the mean of its divisors is an integer number (610055556054).

Almost surely, 2^{1220111112107} is an apocalyptic number.

1220111112107 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220111112107 is an equidigital number, since it uses as much as digits as its factorization.

1220111112107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 20.

Adding to 1220111112107 its reverse (7012111110221), we get a palindrome (8232222222328).

The spelling of 1220111112107 in words is "one trillion, two hundred twenty billion, one hundred eleven million, one hundred twelve thousand, one hundred seven".