1012110020220 has 96 divisors (see below), whose sum is σ = 3054004817472. Its totient is φ = 248963033088.

The previous prime is 1012110019981. The next prime is 1012110020237. The reversal of 1012110020220 is 220200112101.

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 = 1012110020196 and 1012110020205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 686824 + ... + 1579856.

It is an arithmetic number, because the mean of its divisors is an integer number (31812550182).

Almost surely, 2^{1012110020220} is an apocalyptic number.

1012110020220 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 1012110020220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1527002408736).

1012110020220 is an abundant number, since it is smaller than the sum of its proper divisors (2041894797252).

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

1012110020220 is a wasteful number, since it uses less digits than its factorization.

1012110020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894511 (or 894509 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1012110020220 its reverse (220200112101), we get a palindrome (1232310132321).

The spelling of 1012110020220 in words is "one trillion, twelve billion, one hundred ten million, twenty thousand, two hundred twenty".