1201122233430 has 128 divisors (see below), whose sum is σ = 3415523521536. Its totient is φ = 264618854400.

The previous prime is 1201122233419. The next prime is 1201122233431. The reversal of 1201122233430 is 343322211021.

It is a self number, because there is not a number n which added to its sum of digits gives 1201122233430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201122233431) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 125751 + ... + 1555010.

It is an arithmetic number, because the mean of its divisors is an integer number (26683777512).

Almost surely, 2^{1201122233430} is an apocalyptic number.

1201122233430 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 1201122233430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1707761760768).

1201122233430 is an abundant number, since it is smaller than the sum of its proper divisors (2214401288106).

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

1201122233430 is a wasteful number, since it uses less digits than its factorization.

1201122233430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680902.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1201122233430 its reverse (343322211021), we get a palindrome (1544444444451).

The spelling of 1201122233430 in words is "one trillion, two hundred one billion, one hundred twenty-two million, two hundred thirty-three thousand, four hundred thirty".