1212021212199 has 8 divisors (see below), whose sum is σ = 1846889466240. Its totient is φ = 692583549816.

The previous prime is 1212021212197. The next prime is 1212021212201. The reversal of 1212021212199 is 9912121202121.

It is an interprime number because it is at equal distance from previous prime (1212021212197) and next prime (1212021212201).

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

It is not a de Polignac number, because 1212021212199 - 2¹ = 1212021212197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212021212197) 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, 28857647889 + ... + 28857647930.

It is an arithmetic number, because the mean of its divisors is an integer number (230861183280).

Almost surely, 2^{1212021212199} is an apocalyptic number.

1212021212199 is a deficient number, since it is larger than the sum of its proper divisors (634868254041).

1212021212199 is an equidigital number, since it uses as much as digits as its factorization.

1212021212199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57715295829.

The product of its (nonzero) digits is 2592, while the sum is 33.

The spelling of 1212021212199 in words is "one trillion, two hundred twelve billion, twenty-one million, two hundred twelve thousand, one hundred ninety-nine".