121222201019 has 16 divisors (see below), whose sum is σ = 129731696640. Its totient is φ = 112868173440.

The previous prime is 121222201007. The next prime is 121222201057. The reversal of 121222201019 is 910102222121.

It is not a de Polignac number, because 121222201019 - 2¹⁶ = 121222135483 is a prime.

It is a super-2 number, since 2×121222201019² (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 = 121222200985 and 121222201003.

It is not an unprimeable number, because it can be changed into a prime (121222201099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1700312 + ... + 1770170.

It is an arithmetic number, because the mean of its divisors is an integer number (8108231040).

Almost surely, 2^121222201019 is an apocalyptic number.

121222201019 is a deficient number, since it is larger than the sum of its proper divisors (8509495621).

121222201019 is a wasteful number, since it uses less digits than its factorization.

121222201019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70970.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 121222201019 in words is "one hundred twenty-one billion, two hundred twenty-two million, two hundred one thousand, nineteen".