200120202121079 has 2 divisors, whose sum is σ = 200120202121080. Its totient is φ = 200120202121078.

The previous prime is 200120202121061. The next prime is 200120202121123. The reversal of 200120202121079 is 970121202021002.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200120202121079 is a prime.

It is a super-2 number, since 2×200120202121079² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200120202121039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100060101060539 + 100060101060540.

It is an arithmetic number, because the mean of its divisors is an integer number (100060101060540).

Almost surely, 2^{200120202121079} is an apocalyptic number.

200120202121079 is a deficient number, since it is larger than the sum of its proper divisors (1).

200120202121079 is an equidigital number, since it uses as much as digits as its factorization.

200120202121079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 29.

The spelling of 200120202121079 in words is "two hundred trillion, one hundred twenty billion, two hundred two million, one hundred twenty-one thousand, seventy-nine".