121212220201219 has 8 divisors (see below), whose sum is σ = 138744364380768. Its totient is φ = 103734104202240.

The previous prime is 121212220201217. The next prime is 121212220201231. The reversal of 121212220201219 is 912102022212121.

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 121212220201219 - 2¹ = 121212220201217 is a prime.

It is a super-4 number, since 4×121212220201219⁴ (a number of 57 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121212220201217) 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, 13507040332 + ... + 13507049305.

It is an arithmetic number, because the mean of its divisors is an integer number (17343045547596).

Almost surely, 2^{121212220201219} is an apocalyptic number.

121212220201219 is a deficient number, since it is larger than the sum of its proper divisors (17532144179549).

121212220201219 is an equidigital number, since it uses as much as digits as its factorization.

121212220201219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27014090285.

The product of its (nonzero) digits is 1152, while the sum is 28.

The spelling of 121212220201219 in words is "one hundred twenty-one trillion, two hundred twelve billion, two hundred twenty million, two hundred one thousand, two hundred nineteen".