110202120021220 has 48 divisors (see below), whose sum is σ = 241774948321200. Its totient is φ = 42139424499200.

The previous prime is 110202120021193. The next prime is 110202120021221. The reversal of 110202120021220 is 22120021202011.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 21782401134244 + 88419718886976 = 4667162^2 + 9403176^2 .

It is a junction number, because it is equal to n+sod(n) for n = 110202120021194 and 110202120021203.

It is not an unprimeable number, because it can be changed into a prime (110202120021221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 940553575 + ... + 940670734.

It is an arithmetic number, because the mean of its divisors is an integer number (5036978090025).

Almost surely, 2^{110202120021220} is an apocalyptic number.

110202120021220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

110202120021220 is an abundant number, since it is smaller than the sum of its proper divisors (131572828299980).

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

110202120021220 is a wasteful number, since it uses less digits than its factorization.

110202120021220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1881224448 (or 1881224446 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 110202120021220 its reverse (22120021202011), we get a palindrome (132322141223231).

The spelling of 110202120021220 in words is "one hundred ten trillion, two hundred two billion, one hundred twenty million, twenty-one thousand, two hundred twenty".