1011102110220 has 96 divisors (see below), whose sum is σ = 2914168013568. Its totient is φ = 261747562752.

The previous prime is 1011102110197. The next prime is 1011102110251. The reversal of 1011102110220 is 220112011101.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1011102110196 and 1011102110205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 469407 + ... + 1497513.

It is an arithmetic number, because the mean of its divisors is an integer number (30355916808).

Almost surely, 2^{1011102110220} is an apocalyptic number.

1011102110220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1011102110220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1457084006784).

1011102110220 is an abundant number, since it is smaller than the sum of its proper divisors (1903065903348).

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

1011102110220 is a wasteful number, since it uses less digits than its factorization.

1011102110220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028599 (or 1028597 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1011102110220 its reverse (220112011101), we get a palindrome (1231214121321).

The spelling of 1011102110220 in words is "one trillion, eleven billion, one hundred two million, one hundred ten thousand, two hundred twenty".