122121100222 has 8 divisors (see below), whose sum is σ = 199834527672. Its totient is φ = 55509591000.

The previous prime is 122121100163. The next prime is 122121100229. The reversal of 122121100222 is 222001121221.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 122121100196 and 122121100205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122121100229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2775479529 + ... + 2775479572.

It is an arithmetic number, because the mean of its divisors is an integer number (24979315959).

Almost surely, 2^122121100222 is an apocalyptic number.

122121100222 is a deficient number, since it is larger than the sum of its proper divisors (77713427450).

122121100222 is a wasteful number, since it uses less digits than its factorization.

122121100222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5550959114.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 122121100222 its reverse (222001121221), we get a palindrome (344122221443).

The spelling of 122121100222 in words is "one hundred twenty-two billion, one hundred twenty-one million, one hundred thousand, two hundred twenty-two".