10012212091 has 6 divisors (see below), whose sum is σ = 11646859020. Its totient is φ = 8581896036.

The previous prime is 10012212079. The next prime is 10012212103. The reversal of 10012212091 is 19021221001.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (10012212079) and next prime (10012212103).

It is not a de Polignac number, because 10012212091 - 2²⁷ = 9877994363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10012212391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 102165381 + ... + 102165478.

It is an arithmetic number, because the mean of its divisors is an integer number (1941143170).

Almost surely, 2^10012212091 is an apocalyptic number.

10012212091 is a deficient number, since it is larger than the sum of its proper divisors (1634646929).

10012212091 is an equidigital number, since it uses as much as digits as its factorization.

10012212091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204330873 (or 204330866 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 10012212091 its reverse (19021221001), we get a palindrome (29033433092).

The spelling of 10012212091 in words is "ten billion, twelve million, two hundred twelve thousand, ninety-one".