1012011121219 has 4 divisors (see below), whose sum is σ = 1156584138544. Its totient is φ = 867438103896.

The previous prime is 1012011121193. The next prime is 1012011121357. The reversal of 1012011121219 is 9121211102101.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-1012011121219 is a prime.

It is a super-2 number, since 2×1012011121219² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1012011121219.

It is not an unprimeable number, because it can be changed into a prime (1012011121619) 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 3 ways as a sum of consecutive naturals, for example, 72286508652 + ... + 72286508665.

It is an arithmetic number, because the mean of its divisors is an integer number (289146034636).

Almost surely, 2^{1012011121219} is an apocalyptic number.

1012011121219 is a deficient number, since it is larger than the sum of its proper divisors (144573017325).

1012011121219 is an equidigital number, since it uses as much as digits as its factorization.

1012011121219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144573017324.

The product of its (nonzero) digits is 72, while the sum is 22.

The spelling of 1012011121219 in words is "one trillion, twelve billion, eleven million, one hundred twenty-one thousand, two hundred nineteen".