1220100222011 has 8 divisors (see below), whose sum is σ = 1331203194624. Its totient is φ = 1109028044520.

The previous prime is 1220100221993. The next prime is 1220100222013. The reversal of 1220100222011 is 1102220010221.

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-1220100222011 is a prime.

It is a super-3 number, since 3×1220100222011³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220100222013) 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, 7615895 + ... + 7774448.

It is an arithmetic number, because the mean of its divisors is an integer number (166400399328).

Almost surely, 2^{1220100222011} is an apocalyptic number.

1220100222011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1220100222011 is a deficient number, since it is larger than the sum of its proper divisors (111102972613).

1220100222011 is a wasteful number, since it uses less digits than its factorization.

1220100222011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15397561.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1220100222011 its reverse (1102220010221), we get a palindrome (2322320232232).

The spelling of 1220100222011 in words is "one trillion, two hundred twenty billion, one hundred million, two hundred twenty-two thousand, eleven".