121101222212 has 12 divisors (see below), whose sum is σ = 212307622380. Its totient is φ = 60441901536.

The previous prime is 121101222181. The next prime is 121101222233. The reversal of 121101222212 is 212222101121.

It can be written as a sum of positive squares in 2 ways, for example, as 37432188676 + 83669033536 = 193474^2 + 289256^2 .

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, 27174887 + ... + 27179342.

It is an arithmetic number, because the mean of its divisors is an integer number (17692301865).

Almost surely, 2^121101222212 is an apocalyptic number.

It is an amenable number.

121101222212 is a deficient number, since it is larger than the sum of its proper divisors (91206400168).

121101222212 is a wasteful number, since it uses less digits than its factorization.

121101222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54354790 (or 54354788 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121101222212 its reverse (212222101121), we get a palindrome (333323323333).

The spelling of 121101222212 in words is "one hundred twenty-one billion, one hundred one million, two hundred twenty-two thousand, two hundred twelve".