121220210119 has 4 divisors (see below), whose sum is σ = 121228497496. Its totient is φ = 121211922744.

The previous prime is 121220210107. The next prime is 121220210123. The reversal of 121220210119 is 911012022121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 911012022121 = 51869 ⋅17563709.

It is a cyclic number.

It is not a de Polignac number, because 121220210119 - 2⁷ = 121220209991 is a prime.

It is a super-2 number, since 2×121220210119² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121220210119.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121220210219) 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, 4121709 + ... + 4151014.

It is an arithmetic number, because the mean of its divisors is an integer number (30307124374).

Almost surely, 2^121220210119 is an apocalyptic number.

121220210119 is a deficient number, since it is larger than the sum of its proper divisors (8287377).

121220210119 is an equidigital number, since it uses as much as digits as its factorization.

121220210119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8287376.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 121220210119 in words is "one hundred twenty-one billion, two hundred twenty million, two hundred ten thousand, one hundred nineteen".