121220222219 has 8 divisors (see below), whose sum is σ = 132491173248. Its totient is φ = 110409310080.

The previous prime is 121220222213. The next prime is 121220222237. The reversal of 121220222219 is 912222022121.

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

It is a cyclic number.

It is not a de Polignac number, because 121220222219 - 2¹² = 121220218123 is a prime.

It is a super-2 number, since 2×121220222219² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121220222213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115009172 + ... + 115010225.

It is an arithmetic number, because the mean of its divisors is an integer number (16561396656).

Almost surely, 2^121220222219 is an apocalyptic number.

121220222219 is a deficient number, since it is larger than the sum of its proper divisors (11270951029).

121220222219 is a wasteful number, since it uses less digits than its factorization.

121220222219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230019445.

The product of its (nonzero) digits is 1152, while the sum is 26.

The spelling of 121220222219 in words is "one hundred twenty-one billion, two hundred twenty million, two hundred twenty-two thousand, two hundred nineteen".