12101223000 has 64 divisors (see below), whose sum is σ = 37755825120. Its totient is φ = 3226992000.

The previous prime is 12101222981. The next prime is 12101223007. The reversal of 12101223000 is 32210121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101223007) 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, 2013871 + ... + 2019870.

Almost surely, 2^12101223000 is an apocalyptic number.

12101223000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12101223000 is an abundant number, since it is smaller than the sum of its proper divisors (25654602120).

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

12101223000 is a wasteful number, since it uses less digits than its factorization.

12101223000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4033765 (or 4033751 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 12101223000 its reverse (32210121), we get a palindrome (12133433121).

The spelling of 12101223000 in words is "twelve billion, one hundred one million, two hundred twenty-three thousand".