121201001111000 has 64 divisors (see below), whose sum is σ = 283730674949280. Its totient is φ = 48459830812800.

The previous prime is 121201001110993. The next prime is 121201001111009. The reversal of 121201001111000 is 111100102121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121201001111009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23353862 + ... + 28067861.

Almost surely, 2^{121201001111000} is an apocalyptic number.

121201001111000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121201001111000 is an abundant number, since it is smaller than the sum of its proper divisors (162529673838280).

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

121201001111000 is a wasteful number, since it uses less digits than its factorization.

121201001111000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51424101 (or 51424087 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 121201001111000 its reverse (111100102121), we get a palindrome (121312101213121).

The spelling of 121201001111000 in words is "one hundred twenty-one trillion, two hundred one billion, one million, one hundred eleven thousand".