121246722266 has 4 divisors (see below), whose sum is σ = 181870083402. Its totient is φ = 60623361132.

The previous prime is 121246722241. The next prime is 121246722271. The reversal of 121246722266 is 662227642121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 116598346225 + 4648376041 = 341465^2 + 68179^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30311680565 + ... + 30311680568.

Almost surely, 2^121246722266 is an apocalyptic number.

121246722266 is a deficient number, since it is larger than the sum of its proper divisors (60623361136).

121246722266 is an equidigital number, since it uses as much as digits as its factorization.

121246722266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60623361135.

The product of its digits is 193536, while the sum is 41.

The spelling of 121246722266 in words is "one hundred twenty-one billion, two hundred forty-six million, seven hundred twenty-two thousand, two hundred sixty-six".