242121033499 has 2 divisors, whose sum is σ = 242121033500. Its totient is φ = 242121033498.

The previous prime is 242121033493. The next prime is 242121033527. The reversal of 242121033499 is 994330121242.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242121033499 - 2⁵ = 242121033467 is a prime.

It is not a weakly prime, because it can be changed into another prime (242121033493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121060516749 + 121060516750.

It is an arithmetic number, because the mean of its divisors is an integer number (121060516750).

Almost surely, 2^242121033499 is an apocalyptic number.

242121033499 is a deficient number, since it is larger than the sum of its proper divisors (1).

242121033499 is an equidigital number, since it uses as much as digits as its factorization.

242121033499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 40.

The spelling of 242121033499 in words is "two hundred forty-two billion, one hundred twenty-one million, thirty-three thousand, four hundred ninety-nine".