10221001120987 has 2 divisors, whose sum is σ = 10221001120988. Its totient is φ = 10221001120986.

The previous prime is 10221001120973. The next prime is 10221001121021. The reversal of 10221001120987 is 78902110012201.

It is an a-pointer prime, because the next prime (10221001121021) can be obtained adding 10221001120987 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10221001120987 - 2³¹ = 10218853637339 is a prime.

It is a super-2 number, since 2×10221001120987² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10221001120487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110500560493 + 5110500560494.

It is an arithmetic number, because the mean of its divisors is an integer number (5110500560494).

Almost surely, 2^{10221001120987} is an apocalyptic number.

10221001120987 is a deficient number, since it is larger than the sum of its proper divisors (1).

10221001120987 is an equidigital number, since it uses as much as digits as its factorization.

10221001120987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 34.

The spelling of 10221001120987 in words is "ten trillion, two hundred twenty-one billion, one million, one hundred twenty thousand, nine hundred eighty-seven".