1212404971224 has 32 divisors (see below), whose sum is σ = 3031244536320. Its totient is φ = 404104042656.

The previous prime is 1212404971223. The next prime is 1212404971231. The reversal of 1212404971224 is 4221794042121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212404971223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1613212 + ... + 2242155.

It is an arithmetic number, because the mean of its divisors is an integer number (94726391760).

Almost surely, 2^{1212404971224} is an apocalyptic number.

It is an amenable number.

1212404971224 is an abundant number, since it is smaller than the sum of its proper divisors (1818839565096).

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

1212404971224 is a wasteful number, since it uses less digits than its factorization.

1212404971224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3868479 (or 3868475 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The spelling of 1212404971224 in words is "one trillion, two hundred twelve billion, four hundred four million, nine hundred seventy-one thousand, two hundred twenty-four".