10001220110220 has 96 divisors (see below), whose sum is σ = 28097072640000. Its totient is φ = 2658074594560.

The previous prime is 10001220110171. The next prime is 10001220110269. The reversal of 10001220110220 is 2201102210001.

It is an interprime number because it is at equal distance from previous prime (10001220110171) and next prime (10001220110269).

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 = 10001220110196 and 10001220110205.

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, 166659781 + ... + 166719779.

It is an arithmetic number, because the mean of its divisors is an integer number (292677840000).

Almost surely, 2^{10001220110220} is an apocalyptic number.

10001220110220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10001220110220 is an abundant number, since it is smaller than the sum of its proper divisors (18095852529780).

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

10001220110220 is a wasteful number, since it uses less digits than its factorization.

10001220110220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69255 (or 69253 counting only the distinct ones).

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

Adding to 10001220110220 its reverse (2201102210001), we get a palindrome (12202322320221).

The spelling of 10001220110220 in words is "ten trillion, one billion, two hundred twenty million, one hundred ten thousand, two hundred twenty".