1012022102009 has 2 divisors, whose sum is σ = 1012022102010. Its totient is φ = 1012022102008.

The previous prime is 1012022101991. The next prime is 1012022102101. The reversal of 1012022102009 is 9002012202101.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 643208812009 + 368813290000 = 802003^2 + 607300^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012022102009 is a prime.

It is not a weakly prime, because it can be changed into another prime (1012022101009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506011051004 + 506011051005.

It is an arithmetic number, because the mean of its divisors is an integer number (506011051005).

Almost surely, 2^{1012022102009} is an apocalyptic number.

It is an amenable number.

1012022102009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012022102009 is an equidigital number, since it uses as much as digits as its factorization.

1012022102009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 1012022102009 in words is "one trillion, twelve billion, twenty-two million, one hundred two thousand, nine".