121212211022 has 8 divisors (see below), whose sum is σ = 207792361776. Its totient is φ = 51948090432.

The previous prime is 121212211019. The next prime is 121212211079. The reversal of 121212211022 is 220112212121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4329007523 + ... + 4329007550.

It is an arithmetic number, because the mean of its divisors is an integer number (25974045222).

Almost surely, 2^121212211022 is an apocalyptic number.

121212211022 is a deficient number, since it is larger than the sum of its proper divisors (86580150754).

121212211022 is an equidigital number, since it uses as much as digits as its factorization.

121212211022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8658015082.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121212211022 its reverse (220112212121), we get a palindrome (341324423143).

The spelling of 121212211022 in words is "one hundred twenty-one billion, two hundred twelve million, two hundred eleven thousand, twenty-two".