1220022112011 has 4 divisors (see below), whose sum is σ = 1626696149352. Its totient is φ = 813348074672.

The previous prime is 1220022111977. The next prime is 1220022112037. The reversal of 1220022112011 is 1102112200221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1220022112011 - 2⁶ = 1220022111947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1220022112511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203337018666 + ... + 203337018671.

It is an arithmetic number, because the mean of its divisors is an integer number (406674037338).

Almost surely, 2^{1220022112011} is an apocalyptic number.

1220022112011 is a deficient number, since it is larger than the sum of its proper divisors (406674037341).

1220022112011 is an equidigital number, since it uses as much as digits as its factorization.

1220022112011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406674037340.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1220022112011 its reverse (1102112200221), we get a palindrome (2322134312232).

The spelling of 1220022112011 in words is "one trillion, two hundred twenty billion, twenty-two million, one hundred twelve thousand, eleven".