220021012699 has 2 divisors, whose sum is σ = 220021012700. Its totient is φ = 220021012698.

The previous prime is 220021012657. The next prime is 220021012703. The reversal of 220021012699 is 996210120022.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220021012699 is a prime.

It is not a weakly prime, because it can be changed into another prime (220021012639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110010506349 + 110010506350.

It is an arithmetic number, because the mean of its divisors is an integer number (110010506350).

Almost surely, 2^220021012699 is an apocalyptic number.

220021012699 is a deficient number, since it is larger than the sum of its proper divisors (1).

220021012699 is an equidigital number, since it uses as much as digits as its factorization.

220021012699 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 34.

The spelling of 220021012699 in words is "two hundred twenty billion, twenty-one million, twelve thousand, six hundred ninety-nine".