1201121230100 has 36 divisors (see below), whose sum is σ = 2843381532768. Its totient is φ = 436771356000.

The previous prime is 1201121230027. The next prime is 1201121230193. The reversal of 1201121230100 is 10321211021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 545963096 + ... + 545965295.

Almost surely, 2^{1201121230100} is an apocalyptic number.

1201121230100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201121230100 is an abundant number, since it is smaller than the sum of its proper divisors (1642260302668).

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

1201121230100 is a wasteful number, since it uses less digits than its factorization.

1201121230100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091928416 (or 1091928409 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1201121230100 its reverse (10321211021), we get a palindrome (1211442441121).

The spelling of 1201121230100 in words is "one trillion, two hundred one billion, one hundred twenty-one million, two hundred thirty thousand, one hundred".