2021221000151 has 2 divisors, whose sum is σ = 2021221000152. Its totient is φ = 2021221000150.

The previous prime is 2021221000147. The next prime is 2021221000223. The reversal of 2021221000151 is 1510001221202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2021221000151 - 2² = 2021221000147 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2021221000651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010610500075 + 1010610500076.

It is an arithmetic number, because the mean of its divisors is an integer number (1010610500076).

Almost surely, 2^{2021221000151} is an apocalyptic number.

2021221000151 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021221000151 is an equidigital number, since it uses as much as digits as its factorization.

2021221000151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80, while the sum is 17.

Adding to 2021221000151 its reverse (1510001221202), we get a palindrome (3531222221353).

The spelling of 2021221000151 in words is "two trillion, twenty-one billion, two hundred twenty-one million, one hundred fifty-one", and thus it is an aban number.