121420214219 has 4 divisors (see below), whose sum is σ = 122293741080. Its totient is φ = 120546687360.

The previous prime is 121420214213. The next prime is 121420214221. The reversal of 121420214219 is 912412024121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 912412024121 = 13 ⋅70185540317.

It is a cyclic number.

It is not a de Polignac number, because 121420214219 - 2²⁴ = 121403437003 is a prime.

It is a super-2 number, since 2×121420214219² (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 = 121420214191 and 121420214200.

It is not an unprimeable number, because it can be changed into a prime (121420214213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 436763222 + ... + 436763499.

It is an arithmetic number, because the mean of its divisors is an integer number (30573435270).

Almost surely, 2^121420214219 is an apocalyptic number.

121420214219 is a deficient number, since it is larger than the sum of its proper divisors (873526861).

121420214219 is an equidigital number, since it uses as much as digits as its factorization.

121420214219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873526860.

The product of its (nonzero) digits is 2304, while the sum is 29.

The spelling of 121420214219 in words is "one hundred twenty-one billion, four hundred twenty million, two hundred fourteen thousand, two hundred nineteen".