1012220015 has 4 divisors (see below), whose sum is σ = 1214664024. Its totient is φ = 809776008.

The previous prime is 1012220009. The next prime is 1012220017. The reversal of 1012220015 is 5100222101.

1012220015 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1012220015 - 2²⁶ = 945111151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012220017) 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, 101221997 + ... + 101222006.

It is an arithmetic number, because the mean of its divisors is an integer number (303666006).

Almost surely, 2^1012220015 is an apocalyptic number.

1012220015 is a deficient number, since it is larger than the sum of its proper divisors (202444009).

1012220015 is an equidigital number, since it uses as much as digits as its factorization.

1012220015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202444008.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 1012220015 is about 31815.4053093780. The cubic root of 1012220015 is about 1004.0568579806.

Adding to 1012220015 its reverse (5100222101), we get a palindrome (6112442116).

The spelling of 1012220015 in words is "one billion, twelve million, two hundred twenty thousand, fifteen".