1220022111011 has 8 divisors (see below), whose sum is σ = 1330953127104. Its totient is φ = 1109094414120.

The previous prime is 1220022110987. The next prime is 1220022111031. The reversal of 1220022111011 is 1101112200221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1220022111011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220022111031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27521 + ... + 1562306.

It is an arithmetic number, because the mean of its divisors is an integer number (166369140888).

Almost surely, 2^{1220022111011} is an apocalyptic number.

1220022111011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1220022111011 is a deficient number, since it is larger than the sum of its proper divisors (110931016093).

1220022111011 is a wasteful number, since it uses less digits than its factorization.

1220022111011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1659601.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1220022111011 its reverse (1101112200221), we get a palindrome (2321134311232).

It can be divided in two parts, 12200221 and 11011, that multiplied together give a palindrome (134336633431).

The spelling of 1220022111011 in words is "one trillion, two hundred twenty billion, twenty-two million, one hundred eleven thousand, eleven".