121212000022 has 16 divisors (see below), whose sum is σ = 182134296432. Its totient is φ = 60500610720.

The previous prime is 121212000001. The next prime is 121212000047. The reversal of 121212000022 is 220000212121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121211999966 and 121212000011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8417913 + ... + 8432299.

It is an arithmetic number, because the mean of its divisors is an integer number (11383393527).

Almost surely, 2^121212000022 is an apocalyptic number.

121212000022 is a deficient number, since it is larger than the sum of its proper divisors (60922296410).

121212000022 is a wasteful number, since it uses less digits than its factorization.

121212000022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21423.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 121212000022 its reverse (220000212121), we get a palindrome (341212212143).

The spelling of 121212000022 in words is "one hundred twenty-one billion, two hundred twelve million, twenty-two", and thus it is an aban number.