1220022231111 has 12 divisors (see below), whose sum is σ = 1762271983992. Its totient is φ = 813340007856.

The previous prime is 1220022231061. The next prime is 1220022231151. The reversal of 1220022231111 is 1111322200221.

1220022231111 is a `hidden beast` number, since 122 + 0 + 0 + 222 + 311 + 11 = 666.

It is not a de Polignac number, because 1220022231111 - 2¹⁷ = 1220022100039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220022231151) 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, 352060 + ... + 1601246.

It is an arithmetic number, because the mean of its divisors is an integer number (146855998666).

Almost surely, 2^{1220022231111} is an apocalyptic number.

1220022231111 is a deficient number, since it is larger than the sum of its proper divisors (542249752881).

1220022231111 is a wasteful number, since it uses less digits than its factorization.

1220022231111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1357710 (or 1357707 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1220022231111 its reverse (1111322200221), we get a palindrome (2331344431332).

The spelling of 1220022231111 in words is "one trillion, two hundred twenty billion, twenty-two million, two hundred thirty-one thousand, one hundred eleven".