142221010 has 16 divisors (see below), whose sum is σ = 256138200. Its totient is φ = 56857216.

The previous prime is 142220999. The next prime is 142221019. The reversal of 142221010 is 10122241.

It is a happy number.

142221010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 138839089 + 3381921 = 11783^2 + 1839^2 .

It is not an unprimeable number, because it can be changed into a prime (142221019) 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, 26646 + ... + 31534.

Almost surely, 2^142221010 is an apocalyptic number.

142221010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142221010 is a deficient number, since it is larger than the sum of its proper divisors (113917190).

142221010 is a wasteful number, since it uses less digits than its factorization.

142221010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7805.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 142221010 is about 11925.6450559288. The cubic root of 142221010 is about 521.9808691237.

Adding to 142221010 its reverse (10122241), we get a palindrome (152343251).

The spelling of 142221010 in words is "one hundred forty-two million, two hundred twenty-one thousand, ten".