121301223000 has 64 divisors (see below), whose sum is σ = 378459825120. Its totient is φ = 32346992000.

The previous prime is 121301222971. The next prime is 121301223007. The reversal of 121301223000 is 322103121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121301223007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20213871 + ... + 20219870.

Almost surely, 2^121301223000 is an apocalyptic number.

121301223000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121301223000 is an abundant number, since it is smaller than the sum of its proper divisors (257158602120).

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

121301223000 is a wasteful number, since it uses less digits than its factorization.

121301223000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40433765 (or 40433751 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 121301223000 its reverse (322103121), we get a palindrome (121623326121).

The spelling of 121301223000 in words is "one hundred twenty-one billion, three hundred one million, two hundred twenty-three thousand".