1220122112211 has 12 divisors (see below), whose sum is σ = 1810031001792. Its totient is φ = 791430559056.

The previous prime is 1220122112191. The next prime is 1220122112213. The reversal of 1220122112211 is 1122112210221.

1220122112211 is a `hidden beast` number, since 1 + 220 + 1 + 221 + 1 + 221 + 1 = 666.

It is not a de Polignac number, because 1220122112211 - 2¹⁴ = 1220122095827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1220122112213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1832014851 + ... + 1832015516.

It is an arithmetic number, because the mean of its divisors is an integer number (150835916816).

Almost surely, 2^{1220122112211} is an apocalyptic number.

1220122112211 is a deficient number, since it is larger than the sum of its proper divisors (589908889581).

1220122112211 is a wasteful number, since it uses less digits than its factorization.

1220122112211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3664030410 (or 3664030407 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 1220122112211 its reverse (1122112210221), we get a palindrome (2342234322432).

The spelling of 1220122112211 in words is "one trillion, two hundred twenty billion, one hundred twenty-two million, one hundred twelve thousand, two hundred eleven".