1012221151 has 2 divisors, whose sum is σ = 1012221152. Its totient is φ = 1012221150.

The previous prime is 1012221137. The next prime is 1012221211. The reversal of 1012221151 is 1511222101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1012221151 - 2¹⁵ = 1012188383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012221121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506110575 + 506110576.

It is an arithmetic number, because the mean of its divisors is an integer number (506110576).

Almost surely, 2^1012221151 is an apocalyptic number.

1012221151 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012221151 is an equidigital number, since it uses as much as digits as its factorization.

1012221151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40, while the sum is 16.

The square root of 1012221151 is about 31815.4231623595. The cubic root of 1012221151 is about 1004.0572335933.

Adding to 1012221151 its reverse (1511222101), we get a palindrome (2523443252).

The spelling of 1012221151 in words is "one billion, twelve million, two hundred twenty-one thousand, one hundred fifty-one".