121212222012122 has 8 divisors (see below), whose sum is σ = 181996411701972. Its totient is φ = 60546751444800.

The previous prime is 121212222012073. The next prime is 121212222012151. The reversal of 121212222012122 is 221210222212121.

It can be written as a sum of positive squares in 2 ways, for example, as 121160675304601 + 51546707521 = 11007301^2 + 227039^2 .

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

It is a super-2 number, since 2×121212222012122² (a number of 29 digits) contains 22 as substring.

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, 29679778079 + ... + 29679782162.

Almost surely, 2^{121212222012122} is an apocalyptic number.

121212222012122 is a deficient number, since it is larger than the sum of its proper divisors (60784189689850).

121212222012122 is a wasteful number, since it uses less digits than its factorization.

121212222012122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59359561264.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 121212222012122 its reverse (221210222212121), we get a palindrome (342422444224243).

The spelling of 121212222012122 in words is "one hundred twenty-one trillion, two hundred twelve billion, two hundred twenty-two million, twelve thousand, one hundred twenty-two".