1220120102011 has 8 divisors (see below), whose sum is σ = 1240892375040. Its totient is φ = 1199350904808.

The previous prime is 1220120101961. The next prime is 1220120102017. The reversal of 1220120102011 is 1102010210221.

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 1220120102011 - 2¹⁷ = 1220119970939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1220120101982 and 1220120102000.

It is not an unprimeable number, because it can be changed into a prime (1220120102017) 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, 38310 + ... + 1562596.

It is an arithmetic number, because the mean of its divisors is an integer number (155111546880).

Almost surely, 2^{1220120102011} is an apocalyptic number.

1220120102011 is a deficient number, since it is larger than the sum of its proper divisors (20772273029).

1220120102011 is a wasteful number, since it uses less digits than its factorization.

1220120102011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1537913.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1220120102011 its reverse (1102010210221), we get a palindrome (2322130312232).

The spelling of 1220120102011 in words is "one trillion, two hundred twenty billion, one hundred twenty million, one hundred two thousand, eleven".