1201122131310 has 48 divisors (see below), whose sum is σ = 3131764416144. Its totient is φ = 319391863296.

The previous prime is 1201122131203. The next prime is 1201122131317. The reversal of 1201122131310 is 131312211021.

1201122131310 is a `hidden beast` number, since 1 + 201 + 1 + 22 + 131 + 310 = 666.

It is a super-2 number, since 2×1201122131310² (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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201122131317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18871632 + ... + 18935171.

It is an arithmetic number, because the mean of its divisors is an integer number (65245092003).

Almost surely, 2^{1201122131310} is an apocalyptic number.

1201122131310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1201122131310 is an abundant number, since it is smaller than the sum of its proper divisors (1930642284834).

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

1201122131310 is a wasteful number, since it uses less digits than its factorization.

1201122131310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37807169 (or 37807166 counting only the distinct ones).

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

Adding to 1201122131310 its reverse (131312211021), we get a palindrome (1332434342331).

The spelling of 1201122131310 in words is "one trillion, two hundred one billion, one hundred twenty-two million, one hundred thirty-one thousand, three hundred ten".