1012221110019 has 16 divisors (see below), whose sum is σ = 1563561377792. Its totient is φ = 570488609088.

The previous prime is 1012221109993. The next prime is 1012221110053. The reversal of 1012221110019 is 9100111222101.

1012221110019 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1012221110019 - 2⁷ = 1012221109891 is a prime.

It is a super-2 number, since 2×1012221110019² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012221109977 and 1012221110004.

It is not an unprimeable number, because it can be changed into a prime (1012222110019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 330142339 + ... + 330145404.

It is an arithmetic number, because the mean of its divisors is an integer number (97722586112).

Almost surely, 2^{1012221110019} is an apocalyptic number.

1012221110019 is a deficient number, since it is larger than the sum of its proper divisors (551340267773).

1012221110019 is an equidigital number, since it uses as much as digits as its factorization.

1012221110019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660287826.

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

The spelling of 1012221110019 in words is "one trillion, twelve billion, two hundred twenty-one million, one hundred ten thousand, nineteen".