1201121210132 has 12 divisors (see below), whose sum is σ = 2102103587220. Its totient is φ = 600520185216.

The previous prime is 1201121210131. The next prime is 1201121210171. The reversal of 1201121210132 is 2310121211021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 709644499216 + 491476710916 = 842404^2 + 701054^2 .

It is a super-2 number, since 2×1201121210132² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1201121210132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201121210131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10038053 + ... + 10157004.

It is an arithmetic number, because the mean of its divisors is an integer number (175175298935).

Almost surely, 2^{1201121210132} is an apocalyptic number.

It is an amenable number.

1201121210132 is a deficient number, since it is larger than the sum of its proper divisors (900982377088).

1201121210132 is a wasteful number, since it uses less digits than its factorization.

1201121210132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20209930 (or 20209928 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1201121210132 its reverse (2310121211021), we get a palindrome (3511242421153).

The spelling of 1201121210132 in words is "one trillion, two hundred one billion, one hundred twenty-one million, two hundred ten thousand, one hundred thirty-two".