121220221119 has 32 divisors (see below), whose sum is σ = 167302195200. Its totient is φ = 78021100800.

The previous prime is 121220221091. The next prime is 121220221147. The reversal of 121220221119 is 911122022121.

It is an interprime number because it is at equal distance from previous prime (121220221091) and next prime (121220221147).

It is not a de Polignac number, because 121220221119 - 2⁷ = 121220220991 is a prime.

It is a super-2 number, since 2×121220221119² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121220221169) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4954414 + ... + 4978820.

It is an arithmetic number, because the mean of its divisors is an integer number (5228193600).

Almost surely, 2^121220221119 is an apocalyptic number.

121220221119 is a deficient number, since it is larger than the sum of its proper divisors (46081974081).

121220221119 is a wasteful number, since it uses less digits than its factorization.

121220221119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24871.

The product of its (nonzero) digits is 288, while the sum is 24.

It can be divided in two parts, 1212202 and 21119, that added together give a palindrome (1233321).

The spelling of 121220221119 in words is "one hundred twenty-one billion, two hundred twenty million, two hundred twenty-one thousand, one hundred nineteen".