1201110110220 has 48 divisors (see below), whose sum is σ = 3434663812608. Its totient is φ = 313481219520.

The previous prime is 1201110110197. The next prime is 1201110110227. The reversal of 1201110110220 is 220110111021.

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 = 1201110110196 and 1201110110205.

It is not an unprimeable number, because it can be changed into a prime (1201110110227) 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, 212959966 + ... + 212965605.

It is an arithmetic number, because the mean of its divisors is an integer number (71555496096).

Almost surely, 2^{1201110110220} is an apocalyptic number.

1201110110220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201110110220 is an abundant number, since it is smaller than the sum of its proper divisors (2233553702388).

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

1201110110220 is a wasteful number, since it uses less digits than its factorization.

1201110110220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425925630 (or 425925628 counting only the distinct ones).

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

Adding to 1201110110220 its reverse (220110111021), we get a palindrome (1421220221241).

The spelling of 1201110110220 in words is "one trillion, two hundred one billion, one hundred ten million, one hundred ten thousand, two hundred twenty".