10222212121 has 16 divisors (see below), whose sum is σ = 11269368000. Its totient is φ = 9194824000.

The previous prime is 10222212089. The next prime is 10222212157. The reversal of 10222212121 is 12121222201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 10222212121 - 2⁵ = 10222212089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10222212095 and 10222212104.

It is not an unprimeable number, because it can be changed into a prime (10222212191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3096930 + ... + 3100228.

It is an arithmetic number, because the mean of its divisors is an integer number (704335500).

Almost surely, 2^10222212121 is an apocalyptic number.

10222212121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10222212121 is a deficient number, since it is larger than the sum of its proper divisors (1047155879).

10222212121 is a wasteful number, since it uses less digits than its factorization.

10222212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6200.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 10222212121 its reverse (12121222201), we get a palindrome (22343434322).

The spelling of 10222212121 in words is "ten billion, two hundred twenty-two million, two hundred twelve thousand, one hundred twenty-one".