1220110202000 has 40 divisors (see below), whose sum is σ = 2950226473272. Its totient is φ = 488044080000.

The previous prime is 1220110201993. The next prime is 1220110202009. The reversal of 1220110202000 is 2020110221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 312038428816 + 908071773184 = 558604^2 + 952928^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (1220110202009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 305025551 + ... + 305029550.

Almost surely, 2^{1220110202000} is an apocalyptic number.

1220110202000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1220110202000 is an abundant number, since it is smaller than the sum of its proper divisors (1730116271272).

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

1220110202000 is an equidigital number, since it uses as much as digits as its factorization.

1220110202000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610055124 (or 610055108 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1220110202000 its reverse (2020110221), we get a palindrome (1222130312221).

The spelling of 1220110202000 in words is "one trillion, two hundred twenty billion, one hundred ten million, two hundred two thousand".