1212240746220 has 96 divisors (see below), whose sum is σ = 3879458731008. Its totient is φ = 277063003392.

The previous prime is 1212240746219. The next prime is 1212240746239. The reversal of 1212240746220 is 226470422121.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5957602 + ... + 6157718.

It is an arithmetic number, because the mean of its divisors is an integer number (40411028448).

Almost surely, 2^{1212240746220} is an apocalyptic number.

1212240746220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1212240746220 is an abundant number, since it is smaller than the sum of its proper divisors (2667217984788).

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

1212240746220 is a wasteful number, since it uses less digits than its factorization.

1212240746220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214559 (or 214557 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 33.

The spelling of 1212240746220 in words is "one trillion, two hundred twelve billion, two hundred forty million, seven hundred forty-six thousand, two hundred twenty".