1220101000111 has 8 divisors (see below), whose sum is σ = 1420710598944. Its totient is φ = 1026068765280.

The previous prime is 1220101000073. The next prime is 1220101000189. The reversal of 1220101000111 is 1110001010221.

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 1220101000111 - 2²¹ = 1220098902959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220101000511) 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, 1644340600 + ... + 1644341341.

It is an arithmetic number, because the mean of its divisors is an integer number (177588824868).

Almost surely, 2^{1220101000111} is an apocalyptic number.

1220101000111 is a deficient number, since it is larger than the sum of its proper divisors (200609598833).

1220101000111 is an equidigital number, since it uses as much as digits as its factorization.

1220101000111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3288682001.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1220101000111 its reverse (1110001010221), we get a palindrome (2330102010332).

The spelling of 1220101000111 in words is "one trillion, two hundred twenty billion, one hundred one million, one hundred eleven", and thus it is an aban number.