1220222121019 has 24 divisors (see below), whose sum is σ = 1353052198400. Its totient is φ = 1099536197760.

The previous prime is 1220222120987. The next prime is 1220222121023. The reversal of 1220222121019 is 9101212220221.

It is a happy number.

It is not a de Polignac number, because 1220222121019 - 2⁵ = 1220222120987 is a prime.

It is a super-2 number, since 2×1220222121019² (a number of 25 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 = 1220222120984 and 1220222121002.

It is not an unprimeable number, because it can be changed into a prime (1220222121089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16759807 + ... + 16832455.

Almost surely, 2^{1220222121019} is an apocalyptic number.

1220222121019 is a deficient number, since it is larger than the sum of its proper divisors (132830077381).

1220222121019 is a wasteful number, since it uses less digits than its factorization.

1220222121019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73891 (or 73880 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 1220222121019 in words is "one trillion, two hundred twenty billion, two hundred twenty-two million, one hundred twenty-one thousand, nineteen".