10221121007 has 2 divisors, whose sum is σ = 10221121008. Its totient is φ = 10221121006.

The previous prime is 10221120979. The next prime is 10221121037. The reversal of 10221121007 is 70012112201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10221121007 - 2¹⁴ = 10221104623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10221121037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110560503 + 5110560504.

It is an arithmetic number, because the mean of its divisors is an integer number (5110560504).

Almost surely, 2^10221121007 is an apocalyptic number.

10221121007 is a deficient number, since it is larger than the sum of its proper divisors (1).

10221121007 is an equidigital number, since it uses as much as digits as its factorization.

10221121007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56, while the sum is 17.

Adding to 10221121007 its reverse (70012112201), we get a palindrome (80233233208).

The spelling of 10221121007 in words is "ten billion, two hundred twenty-one million, one hundred twenty-one thousand, seven".