1012220010 has 32 divisors (see below), whose sum is σ = 2699254080. Its totient is φ = 269925264.

The previous prime is 1012220009. The next prime is 1012220017. The reversal of 1012220010 is 100222101.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1012219974 and 1012220001.

It is not an unprimeable number, because it can be changed into a prime (1012220017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1874212 + ... + 1874751.

It is an arithmetic number, because the mean of its divisors is an integer number (84351690).

Almost surely, 2^1012220010 is an apocalyptic number.

1012220010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1012220010 is an abundant number, since it is smaller than the sum of its proper divisors (1687034070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1012220010 is a wasteful number, since it uses less digits than its factorization.

1012220010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3748979 (or 3748973 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1012220010 is about 31815.4052307997. The cubic root of 1012220010 is about 1004.0568563274.

Adding to 1012220010 its reverse (100222101), we get a palindrome (1112442111).

The spelling of 1012220010 in words is "one billion, twelve million, two hundred twenty thousand, ten".