2120001200087 has 2 divisors, whose sum is σ = 2120001200088. Its totient is φ = 2120001200086.

The previous prime is 2120001199993. The next prime is 2120001200123. The reversal of 2120001200087 is 7800021000212.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2120001200087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2120001200287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060000600043 + 1060000600044.

It is an arithmetic number, because the mean of its divisors is an integer number (1060000600044).

Almost surely, 2^{2120001200087} is an apocalyptic number.

2120001200087 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120001200087 is an equidigital number, since it uses as much as digits as its factorization.

2120001200087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 23.

Adding to 2120001200087 its reverse (7800021000212), we get a palindrome (9920022200299).

The spelling of 2120001200087 in words is "two trillion, one hundred twenty billion, one million, two hundred thousand, eighty-seven".