121222112022212 has 6 divisors (see below), whose sum is σ = 212138696038878. Its totient is φ = 60611056011104.

The previous prime is 121222112022199. The next prime is 121222112022227. The reversal of 121222112022212 is 212220211222121.

It can be written as a sum of positive squares in only one way, i.e., 86691257342596 + 34530854679616 = 9310814^2 + 5876296^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15152764002773 + ... + 15152764002780.

It is an arithmetic number, because the mean of its divisors is an integer number (35356449339813).

Almost surely, 2^{121222112022212} is an apocalyptic number.

It is an amenable number.

121222112022212 is a deficient number, since it is larger than the sum of its proper divisors (90916584016666).

121222112022212 is a wasteful number, since it uses less digits than its factorization.

121222112022212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30305528005557 (or 30305528005555 counting only the distinct ones).

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

Adding to 121222112022212 its reverse (212220211222121), we get a palindrome (333442323244333).

The spelling of 121222112022212 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, one hundred twelve million, twenty-two thousand, two hundred twelve".