1210123212222 has 64 divisors (see below), whose sum is σ = 2574291456000. Its totient is φ = 377917777920.

The previous prime is 1210123212149. The next prime is 1210123212223. The reversal of 1210123212222 is 2222123210121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210123212223) 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 in 31 ways as a sum of consecutive naturals, for example, 70763029 + ... + 70780127.

It is an arithmetic number, because the mean of its divisors is an integer number (40223304000).

Almost surely, 2^{1210123212222} is an apocalyptic number.

1210123212222 is an abundant number, since it is smaller than the sum of its proper divisors (1364168243778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1210123212222 is a wasteful number, since it uses less digits than its factorization.

1210123212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20241.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 1210123212222 its reverse (2222123210121), we get a palindrome (3432246422343).

The spelling of 1210123212222 in words is "one trillion, two hundred ten billion, one hundred twenty-three million, two hundred twelve thousand, two hundred twenty-two".