1012021220019 has 8 divisors (see below), whose sum is σ = 1349614006720. Its totient is φ = 674554623336.

The previous prime is 1012021220009. The next prime is 1012021220047. The reversal of 1012021220019 is 9100221202101.

1012021220019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1012021220019 - 2¹² = 1012021215923 is a prime.

It is a super-2 number, since 2×1012021220019² (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 = 1012021219977 and 1012021220004.

It is not an unprimeable number, because it can be changed into a prime (1012021220009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31528789 + ... + 31560870.

It is an arithmetic number, because the mean of its divisors is an integer number (168701750840).

Almost surely, 2^{1012021220019} is an apocalyptic number.

1012021220019 is a deficient number, since it is larger than the sum of its proper divisors (337592786701).

1012021220019 is an equidigital number, since it uses as much as digits as its factorization.

1012021220019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63095009.

The product of its (nonzero) digits is 144, while the sum is 21.

The spelling of 1012021220019 in words is "one trillion, twelve billion, twenty-one million, two hundred twenty thousand, nineteen".