1222121202122 has 32 divisors (see below), whose sum is σ = 1916666496000. Its totient is φ = 583691976000.

The previous prime is 1222121202121. The next prime is 1222121202161. The reversal of 1222121202122 is 2212021212221.

It is a super-2 number, since 2×1222121202122² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1222121202094 and 1222121202103.

It is not an unprimeable number, because it can be changed into a prime (1222121202121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7481879 + ... + 7643477.

It is an arithmetic number, because the mean of its divisors is an integer number (59895828000).

Almost surely, 2^{1222121202122} is an apocalyptic number.

1222121202122 is a deficient number, since it is larger than the sum of its proper divisors (694545293878).

1222121202122 is a wasteful number, since it uses less digits than its factorization.

1222121202122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163022.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 1222121202122 its reverse (2212021212221), we get a palindrome (3434142414343).

The spelling of 1222121202122 in words is "one trillion, two hundred twenty-two billion, one hundred twenty-one million, two hundred two thousand, one hundred twenty-two".