121222012223210 has 64 divisors (see below), whose sum is σ = 222966085791744. Its totient is φ = 47430746721600.

The previous prime is 121222012223189. The next prime is 121222012223227. The reversal of 121222012223210 is 12322210222121.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8090629379 + ... + 8090644361.

It is an arithmetic number, because the mean of its divisors is an integer number (3483845090496).

Almost surely, 2^{121222012223210} is an apocalyptic number.

121222012223210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121222012223210 is a deficient number, since it is larger than the sum of its proper divisors (101744073568534).

121222012223210 is a wasteful number, since it uses less digits than its factorization.

121222012223210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23459.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 121222012223210 its reverse (12322210222121), we get a palindrome (133544222445331).

The spelling of 121222012223210 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, twelve million, two hundred twenty-three thousand, two hundred ten".