1212202120999 has 8 divisors (see below), whose sum is σ = 1235690064000. Its totient is φ = 1188812249592.

The previous prime is 1212202120967. The next prime is 1212202121017. The reversal of 1212202120999 is 9990212022121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1212202120999 - 2⁵ = 1212202120967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212202120499) 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, 24492939 + ... + 24542380.

It is an arithmetic number, because the mean of its divisors is an integer number (154461258000).

Almost surely, 2^{1212202120999} is an apocalyptic number.

1212202120999 is a deficient number, since it is larger than the sum of its proper divisors (23487943001).

1212202120999 is an equidigital number, since it uses as much as digits as its factorization.

1212202120999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49035797.

The product of its (nonzero) digits is 23328, while the sum is 40.

The spelling of 1212202120999 in words is "one trillion, two hundred twelve billion, two hundred two million, one hundred twenty thousand, nine hundred ninety-nine".