22121121102007 has 2 divisors, whose sum is σ = 22121121102008. Its totient is φ = 22121121102006.

The previous prime is 22121121101983. The next prime is 22121121102071. The reversal of 22121121102007 is 70020112112122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22121121102007 - 2³⁹ = 21571365288119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22121121102077) 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, 11060560551003 + 11060560551004.

It is an arithmetic number, because the mean of its divisors is an integer number (11060560551004).

Almost surely, 2^{22121121102007} is an apocalyptic number.

22121121102007 is a deficient number, since it is larger than the sum of its proper divisors (1).

22121121102007 is an equidigital number, since it uses as much as digits as its factorization.

22121121102007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 22.

Adding to 22121121102007 its reverse (70020112112122), we get a palindrome (92141233214129).

The spelling of 22121121102007 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred twenty-one million, one hundred two thousand, seven".