121222012200122 has 4 divisors (see below), whose sum is σ = 181833018300186. Its totient is φ = 60611006100060.

The previous prime is 121222012200097. The next prime is 121222012200131. The reversal of 121222012200122 is 221002210222121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 101757071175841 + 19464941024281 = 10087471^2 + 4411909^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121222012200094 and 121222012200103.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30305503050029 + ... + 30305503050032.

Almost surely, 2^{121222012200122} is an apocalyptic number.

121222012200122 is a deficient number, since it is larger than the sum of its proper divisors (60611006100064).

121222012200122 is an equidigital number, since it uses as much as digits as its factorization.

121222012200122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60611006100063.

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

Adding to 121222012200122 its reverse (221002210222121), we get a palindrome (342224222422243).

The spelling of 121222012200122 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, twelve million, two hundred thousand, one hundred twenty-two".