121002222212 has 6 divisors (see below), whose sum is σ = 211753888878. Its totient is φ = 60501111104.

The previous prime is 121002222203. The next prime is 121002222293. The reversal of 121002222212 is 212222200121.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 62808379456 + 58193842756 = 250616^2 + 241234^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15125277773 + ... + 15125277780.

It is an arithmetic number, because the mean of its divisors is an integer number (35292314813).

Almost surely, 2^121002222212 is an apocalyptic number.

It is an amenable number.

121002222212 is a deficient number, since it is larger than the sum of its proper divisors (90751666666).

121002222212 is a wasteful number, since it uses less digits than its factorization.

121002222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30250555557 (or 30250555555 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 121002222212 its reverse (212222200121), we get a palindrome (333224422333).

The spelling of 121002222212 in words is "one hundred twenty-one billion, two million, two hundred twenty-two thousand, two hundred twelve".