1000111210220 has 12 divisors (see below), whose sum is σ = 2100233541504. Its totient is φ = 400044484080.

The previous prime is 1000111210211. The next prime is 1000111210393. The reversal of 1000111210220 is 220121110001.

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, 25002780236 + ... + 25002780275.

It is an arithmetic number, because the mean of its divisors is an integer number (175019461792).

Almost surely, 2^{1000111210220} is an apocalyptic number.

1000111210220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000111210220 is an abundant number, since it is smaller than the sum of its proper divisors (1100122331284).

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

1000111210220 is a wasteful number, since it uses less digits than its factorization.

1000111210220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50005560520 (or 50005560518 counting only the distinct ones).

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

Adding to 1000111210220 its reverse (220121110001), we get a palindrome (1220232320221).

The spelling of 1000111210220 in words is "one trillion, one hundred eleven million, two hundred ten thousand, two hundred twenty".