1111100020220 has 12 divisors (see below), whose sum is σ = 2333310042504. Its totient is φ = 444440008080.

The previous prime is 1111100020207. The next prime is 1111100020241. The reversal of 1111100020220 is 220200011111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27777500486 + ... + 27777500525.

It is an arithmetic number, because the mean of its divisors is an integer number (194442503542).

Almost surely, 2^{1111100020220} is an apocalyptic number.

1111100020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111100020220 is an abundant number, since it is smaller than the sum of its proper divisors (1222210022284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1111100020220 is a wasteful number, since it uses less digits than its factorization.

1111100020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55555001020 (or 55555001018 counting only the distinct ones).

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

Adding to 1111100020220 its reverse (220200011111), we get a palindrome (1331300031331).

The spelling of 1111100020220 in words is "one trillion, one hundred eleven billion, one hundred million, twenty thousand, two hundred twenty".