1220011211019 has 4 divisors (see below), whose sum is σ = 1626681614696. Its totient is φ = 813340807344.

The previous prime is 1220011210981. The next prime is 1220011211053. The reversal of 1220011211019 is 9101121100221.

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

It is not a de Polignac number, because 1220011211019 - 2¹⁵ = 1220011178251 is a prime.

It is a super-2 number, since 2×1220011211019² (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 = 1220011210986 and 1220011211004.

It is not an unprimeable number, because it can be changed into a prime (1220011211819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203335201834 + ... + 203335201839.

It is an arithmetic number, because the mean of its divisors is an integer number (406670403674).

Almost surely, 2^{1220011211019} is an apocalyptic number.

1220011211019 is a deficient number, since it is larger than the sum of its proper divisors (406670403677).

1220011211019 is an equidigital number, since it uses as much as digits as its factorization.

1220011211019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406670403676.

The product of its (nonzero) digits is 72, while the sum is 21.

The spelling of 1220011211019 in words is "one trillion, two hundred twenty billion, eleven million, two hundred eleven thousand, nineteen".