121038222666 has 8 divisors (see below), whose sum is σ = 242076445344. Its totient is φ = 40346074220.

The previous prime is 121038222647. The next prime is 121038222673. The reversal of 121038222666 is 666222830121.

It is a sphenic number, since it is the product of 3 distinct primes.

121038222666 is an admirable number.

It is a super-2 number, since 2×121038222666² (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, 10086518550 + ... + 10086518561.

It is an arithmetic number, because the mean of its divisors is an integer number (30259555668).

Almost surely, 2^121038222666 is an apocalyptic number.

121038222666 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121038222666 is a wasteful number, since it uses less digits than its factorization.

121038222666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20173037116.

The product of its (nonzero) digits is 82944, while the sum is 39.

The spelling of 121038222666 in words is "one hundred twenty-one billion, thirty-eight million, two hundred twenty-two thousand, six hundred sixty-six".