142122011 has 16 divisors (see below), whose sum is σ = 152928000. Its totient is φ = 131779200.

The previous prime is 142122007. The next prime is 142122047. The reversal of 142122011 is 110221241.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 142122011 - 2² = 142122007 is a prime.

It is a super-4 number, since 4×142122011⁴ (a number of 34 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142122061) 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, 133421 + ... + 134481.

It is an arithmetic number, because the mean of its divisors is an integer number (9558000).

Almost surely, 2^142122011 is an apocalyptic number.

142122011 is a deficient number, since it is larger than the sum of its proper divisors (10805989).

142122011 is a wasteful number, since it uses less digits than its factorization.

142122011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1270.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 142122011 is about 11921.4936564174. The cubic root of 142122011 is about 521.8597253277.

Adding to 142122011 its reverse (110221241), we get a palindrome (252343252).

It can be divided in two parts, 1421 and 22011, that added together give a palindrome (23432).

The spelling of 142122011 in words is "one hundred forty-two million, one hundred twenty-two thousand, eleven".