1220012212019 has 4 divisors (see below), whose sum is σ = 1221623853744. Its totient is φ = 1218400570296.

The previous prime is 1220012211973. The next prime is 1220012212021. The reversal of 1220012212019 is 9102122100221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1220012212019 - 2¹² = 1220012207923 is a prime.

It is a super-2 number, since 2×1220012212019² (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 = 1220012211985 and 1220012212003.

It is not an unprimeable number, because it can be changed into a prime (1220012212079) 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, 805819727 + ... + 805821240.

It is an arithmetic number, because the mean of its divisors is an integer number (305405963436).

Almost surely, 2^{1220012212019} is an apocalyptic number.

1220012212019 is a deficient number, since it is larger than the sum of its proper divisors (1611641725).

1220012212019 is an equidigital number, since it uses as much as digits as its factorization.

1220012212019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1611641724.

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

The spelling of 1220012212019 in words is "one trillion, two hundred twenty billion, twelve million, two hundred twelve thousand, nineteen".