1120121121210 has 256 divisors, whose sum is σ = 3346879979520. Its totient is φ = 233617812480.

The previous prime is 1120121121209. The next prime is 1120121121289. The reversal of 1120121121210 is 121211210211.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1120121121210.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 94050736 + ... + 94062644.

It is an arithmetic number, because the mean of its divisors is an integer number (13073749920).

Almost surely, 2^{1120121121210} is an apocalyptic number.

1120121121210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1120121121210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1673439989760).

1120121121210 is an abundant number, since it is smaller than the sum of its proper divisors (2226758858310).

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

1120121121210 is a wasteful number, since it uses less digits than its factorization.

1120121121210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12333.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1120121121210 its reverse (121211210211), we get a palindrome (1241332331421).

The spelling of 1120121121210 in words is "one trillion, one hundred twenty billion, one hundred twenty-one million, one hundred twenty-one thousand, two hundred ten".