200120202101947 has 2 divisors, whose sum is σ = 200120202101948. Its totient is φ = 200120202101946.

The previous prime is 200120202101903. The next prime is 200120202101969. The reversal of 200120202101947 is 749101202021002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 200120202101947 - 2¹¹ = 200120202099899 is a prime.

It is a super-2 number, since 2×200120202101947² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (200120202101147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100060101050973 + 100060101050974.

It is an arithmetic number, because the mean of its divisors is an integer number (100060101050974).

Almost surely, 2^{200120202101947} is an apocalyptic number.

200120202101947 is a deficient number, since it is larger than the sum of its proper divisors (1).

200120202101947 is an equidigital number, since it uses as much as digits as its factorization.

200120202101947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 31.

Adding to 200120202101947 its reverse (749101202021002), we get a palindrome (949221404122949).

The spelling of 200120202101947 in words is "two hundred trillion, one hundred twenty billion, two hundred two million, one hundred one thousand, nine hundred forty-seven".