1220122112011 has 8 divisors (see below), whose sum is σ = 1331052388848. Its totient is φ = 1109193516000.

The previous prime is 1220122111993. The next prime is 1220122112047. The reversal of 1220122112011 is 1102112210221.

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

It is a cyclic number.

It is not a de Polignac number, because 1220122112011 - 2¹¹ = 1220122109963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220122812011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1465581 + ... + 2142001.

It is an arithmetic number, because the mean of its divisors is an integer number (166381548606).

Almost surely, 2^{1220122112011} is an apocalyptic number.

1220122112011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1220122112011 is a deficient number, since it is larger than the sum of its proper divisors (110930276837).

1220122112011 is a wasteful number, since it uses less digits than its factorization.

1220122112011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840413.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1220122112011 its reverse (1102112210221), we get a palindrome (2322234322232).

The spelling of 1220122112011 in words is "one trillion, two hundred twenty billion, one hundred twenty-two million, one hundred twelve thousand, eleven".