1220010001120 has 48 divisors (see below), whose sum is σ = 2895933772368. Its totient is φ = 485691171840.

The previous prime is 1220010001103. The next prime is 1220010001123. The reversal of 1220010001120 is 211000100221.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 1220010001097 and 1220010001106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220010001123) 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, 18035109 + ... + 18102628.

It is an arithmetic number, because the mean of its divisors is an integer number (60331953591).

Almost surely, 2^{1220010001120} is an apocalyptic number.

1220010001120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1220010001120 is an abundant number, since it is smaller than the sum of its proper divisors (1675923771248).

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

1220010001120 is a wasteful number, since it uses less digits than its factorization.

1220010001120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36137963 (or 36137955 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1220010001120 its reverse (211000100221), we get a palindrome (1431010101341).

The spelling of 1220010001120 in words is "one trillion, two hundred twenty billion, ten million, one thousand, one hundred twenty".