10222112121 has 32 divisors (see below), whose sum is σ = 15692302080. Its totient is φ = 5862979584.

The previous prime is 10222112113. The next prime is 10222112161. The reversal of 10222112121 is 12121122201.

It is not a de Polignac number, because 10222112121 - 2³ = 10222112113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10222112121.

It is not an unprimeable number, because it can be changed into a prime (10222112101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6556 + ... + 143133.

It is an arithmetic number, because the mean of its divisors is an integer number (490384440).

Almost surely, 2^10222112121 is an apocalyptic number.

It is an amenable number.

10222112121 is a deficient number, since it is larger than the sum of its proper divisors (5470189959).

10222112121 is a wasteful number, since it uses less digits than its factorization.

10222112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149825.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10222112121 its reverse (12121122201), we get a palindrome (22343234322).

The spelling of 10222112121 in words is "ten billion, two hundred twenty-two million, one hundred twelve thousand, one hundred twenty-one".