121222022019 has 32 divisors (see below), whose sum is σ = 185091778560. Its totient is φ = 69130202112.

The previous prime is 121222021981. The next prime is 121222022029. The reversal of 121222022019 is 910220222121.

It is not a de Polignac number, because 121222022019 - 2¹⁷ = 121221890947 is a prime.

It is a super-3 number, since 3×121222022019³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 121222022019.

It is not an unprimeable number, because it can be changed into a prime (121222022029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26027739 + ... + 26032395.

It is an arithmetic number, because the mean of its divisors is an integer number (5784118080).

Almost surely, 2^121222022019 is an apocalyptic number.

121222022019 is a deficient number, since it is larger than the sum of its proper divisors (63869756541).

121222022019 is a wasteful number, since it uses less digits than its factorization.

121222022019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6899.

The product of its (nonzero) digits is 576, while the sum is 24.

The spelling of 121222022019 in words is "one hundred twenty-one billion, two hundred twenty-two million, twenty-two thousand, nineteen".