121310022212 has 12 divisors (see below), whose sum is σ = 212297435196. Its totient is φ = 60653612160.

The previous prime is 121310022191. The next prime is 121310022277. The reversal of 121310022212 is 212220013121.

It can be written as a sum of positive squares in 2 ways, for example, as 81878388736 + 39431633476 = 286144^2 + 198574^2 .

It is a super-2 number, since 2×121310022212² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140753 + ... + 512280.

It is an arithmetic number, because the mean of its divisors is an integer number (17691452933).

Almost surely, 2^121310022212 is an apocalyptic number.

It is an amenable number.

121310022212 is a deficient number, since it is larger than the sum of its proper divisors (90987412984).

121310022212 is a wasteful number, since it uses less digits than its factorization.

121310022212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699478 (or 699476 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 121310022212 its reverse (212220013121), we get a palindrome (333530035333).

Subtracting 121310022212 from its reverse (212220013121), we obtain a palindrome (90909990909).

The spelling of 121310022212 in words is "one hundred twenty-one billion, three hundred ten million, twenty-two thousand, two hundred twelve".