220121000200987 has 2 divisors, whose sum is σ = 220121000200988. Its totient is φ = 220121000200986.

The previous prime is 220121000200889. The next prime is 220121000200993. The reversal of 220121000200987 is 789002000121022.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220121000200987 is a prime.

It is not a weakly prime, because it can be changed into another prime (220121000201987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110060500100493 + 110060500100494.

It is an arithmetic number, because the mean of its divisors is an integer number (110060500100494).

Almost surely, 2^{220121000200987} is an apocalyptic number.

220121000200987 is a deficient number, since it is larger than the sum of its proper divisors (1).

220121000200987 is an equidigital number, since it uses as much as digits as its factorization.

220121000200987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 34.

The spelling of 220121000200987 in words is "two hundred twenty trillion, one hundred twenty-one billion, two hundred thousand, nine hundred eighty-seven".