2121222220699 has 2 divisors, whose sum is σ = 2121222220700. Its totient is φ = 2121222220698.

The previous prime is 2121222220643. The next prime is 2121222220703. The reversal of 2121222220699 is 9960222221212.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2121222220699 is a prime.

It is not a weakly prime, because it can be changed into another prime (2121222220639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060611110349 + 1060611110350.

It is an arithmetic number, because the mean of its divisors is an integer number (1060611110350).

Almost surely, 2^{2121222220699} is an apocalyptic number.

2121222220699 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121222220699 is an equidigital number, since it uses as much as digits as its factorization.

2121222220699 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 40.

The spelling of 2121222220699 in words is "two trillion, one hundred twenty-one billion, two hundred twenty-two million, two hundred twenty thousand, six hundred ninety-nine".