10022121091 has 2 divisors, whose sum is σ = 10022121092. Its totient is φ = 10022121090.

The previous prime is 10022121077. The next prime is 10022121103. The reversal of 10022121091 is 19012122001.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (19012122001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10022121091 - 2⁵ = 10022121059 is a prime.

It is a super-2 number, since 2×10022121091² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10022127091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5011060545 + 5011060546.

It is an arithmetic number, because the mean of its divisors is an integer number (5011060546).

Almost surely, 2^10022121091 is an apocalyptic number.

10022121091 is a deficient number, since it is larger than the sum of its proper divisors (1).

10022121091 is an equidigital number, since it uses as much as digits as its factorization.

10022121091 is an evil number, because the sum of its binary digits is even.

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

Adding to 10022121091 its reverse (19012122001), we get a palindrome (29034243092).

The spelling of 10022121091 in words is "ten billion, twenty-two million, one hundred twenty-one thousand, ninety-one".