1221202012199 has 8 divisors (see below), whose sum is σ = 1315296182592. Its totient is φ = 1127130063840.

The previous prime is 1221202012159. The next prime is 1221202012241. The reversal of 1221202012199 is 9912102021221.

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 1221202012199 - 2¹⁶ = 1221201946663 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 (1221202012159) 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, 5441279 + ... + 5661264.

It is an arithmetic number, because the mean of its divisors is an integer number (164412022824).

Almost surely, 2^{1221202012199} is an apocalyptic number.

1221202012199 is a deficient number, since it is larger than the sum of its proper divisors (94094170393).

1221202012199 is a wasteful number, since it uses less digits than its factorization.

1221202012199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11111017.

The product of its (nonzero) digits is 2592, while the sum is 32.

The spelling of 1221202012199 in words is "one trillion, two hundred twenty-one billion, two hundred two million, twelve thousand, one hundred ninety-nine".