200120202101969 has 2 divisors, whose sum is σ = 200120202101970. Its totient is φ = 200120202101968.

The previous prime is 200120202101947. The next prime is 200120202102011. The reversal of 200120202101969 is 969101202021002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 153175573993744 + 46944628108225 = 12376412^2 + 6851615^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200120202101969 is a prime.

It is a super-2 number, since 2×200120202101969² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (200120202101069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100060101050984 + 100060101050985.

It is an arithmetic number, because the mean of its divisors is an integer number (100060101050985).

Almost surely, 2^{200120202101969} is an apocalyptic number.

It is an amenable number.

200120202101969 is a deficient number, since it is larger than the sum of its proper divisors (1).

200120202101969 is an equidigital number, since it uses as much as digits as its factorization.

200120202101969 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 35.

The spelling of 200120202101969 in words is "two hundred trillion, one hundred twenty billion, two hundred two million, one hundred one thousand, nine hundred sixty-nine".