1220011002111 has 8 divisors (see below), whose sum is σ = 1774561457664. Its totient is φ = 739400607320.

The previous prime is 1220011002109. The next prime is 1220011002157. The reversal of 1220011002111 is 1112001100221.

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 1220011002111 - 2¹ = 1220011002109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220011009111) 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, 18485015151 + ... + 18485015216.

It is an arithmetic number, because the mean of its divisors is an integer number (221820182208).

Almost surely, 2^{1220011002111} is an apocalyptic number.

1220011002111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1220011002111 is a deficient number, since it is larger than the sum of its proper divisors (554550455553).

1220011002111 is a wasteful number, since it uses less digits than its factorization.

1220011002111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36970030381.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1220011002111 its reverse (1112001100221), we get a palindrome (2332012102332).

The spelling of 1220011002111 in words is "one trillion, two hundred twenty billion, eleven million, two thousand, one hundred eleven".