1220100002111 has 8 divisors (see below), whose sum is σ = 1248872373504. Its totient is φ = 1191444830680.

The previous prime is 1220100002083. The next prime is 1220100002129. The reversal of 1220100002111 is 1112000010221.

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 1220100002111 - 2¹⁸ = 1220099739967 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1220100002092 and 1220100002101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220100002161) 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, 29278925 + ... + 29320566.

It is an arithmetic number, because the mean of its divisors is an integer number (156109046688).

Almost surely, 2^{1220100002111} is an apocalyptic number.

1220100002111 is a deficient number, since it is larger than the sum of its proper divisors (28772371393).

1220100002111 is an equidigital number, since it uses as much as digits as its factorization.

1220100002111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58599981.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1220100002111 its reverse (1112000010221), we get a palindrome (2332100012332).

The spelling of 1220100002111 in words is "one trillion, two hundred twenty billion, one hundred million, two thousand, one hundred eleven".