121201011219 has 8 divisors (see below), whose sum is σ = 162763948480. Its totient is φ = 80219374056.

The previous prime is 121201011167. The next prime is 121201011221. The reversal of 121201011219 is 912110102121.

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

It is not a de Polignac number, because 121201011219 - 2³² = 116906043923 is a prime.

It is a super-2 number, since 2×121201011219² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121201011195 and 121201011204.

It is not an unprimeable number, because it can be changed into a prime (121201011289) 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, 145324537 + ... + 145325370.

It is an arithmetic number, because the mean of its divisors is an integer number (20345493560).

Almost surely, 2^121201011219 is an apocalyptic number.

121201011219 is a deficient number, since it is larger than the sum of its proper divisors (41562937261).

121201011219 is a wasteful number, since it uses less digits than its factorization.

121201011219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290650049.

The product of its (nonzero) digits is 72, while the sum is 21.

The spelling of 121201011219 in words is "one hundred twenty-one billion, two hundred one million, eleven thousand, two hundred nineteen".