1011112202220 has 24 divisors (see below), whose sum is σ = 2831114166384. Its totient is φ = 269629920576.

The previous prime is 1011112202209. The next prime is 1011112202237. The reversal of 1011112202220 is 222022111101.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1011112202220.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8425934959 + ... + 8425935078.

It is an arithmetic number, because the mean of its divisors is an integer number (117963090266).

Almost surely, 2^{1011112202220} is an apocalyptic number.

1011112202220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011112202220 is an abundant number, since it is smaller than the sum of its proper divisors (1820001964164).

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

1011112202220 is a wasteful number, since it uses less digits than its factorization.

1011112202220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16851870049 (or 16851870047 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1011112202220 its reverse (222022111101), we get a palindrome (1233134313321).

The spelling of 1011112202220 in words is "one trillion, eleven billion, one hundred twelve million, two hundred two thousand, two hundred twenty".