1131301221210 has 32 divisors (see below), whose sum is σ = 3016803257280. Its totient is φ = 301680325584.

The previous prime is 1131301221187. The next prime is 1131301221223. The reversal of 1131301221210 is 121221031311.

1131301221210 is a `hidden beast` number, since 1 + 131 + 301 + 2 + 21 + 210 = 666.

It is a super-2 number, since 2×1131301221210² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2095001992 + ... + 2095002531.

It is an arithmetic number, because the mean of its divisors is an integer number (94275101790).

Almost surely, 2^{1131301221210} is an apocalyptic number.

1131301221210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1131301221210 is an abundant number, since it is smaller than the sum of its proper divisors (1885502036070).

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

1131301221210 is a wasteful number, since it uses less digits than its factorization.

1131301221210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4190004539 (or 4190004533 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1131301221210 its reverse (121221031311), we get a palindrome (1252522252521).

The spelling of 1131301221210 in words is "one trillion, one hundred thirty-one billion, three hundred one million, two hundred twenty-one thousand, two hundred ten".