142220201 has 4 divisors (see below), whose sum is σ = 148403712. Its totient is φ = 136036692.

The previous prime is 142220189. The next prime is 142220203. The reversal of 142220201 is 102022241.

142220201 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 142220201 - 2⁶ = 142220137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142220203) 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, 3091721 + ... + 3091766.

It is an arithmetic number, because the mean of its divisors is an integer number (37100928).

Almost surely, 2^142220201 is an apocalyptic number.

It is an amenable number.

142220201 is a deficient number, since it is larger than the sum of its proper divisors (6183511).

142220201 is an equidigital number, since it uses as much as digits as its factorization.

142220201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6183510.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 142220201 is about 11925.6111373799. The cubic root of 142220201 is about 521.9798793887.

Adding to 142220201 its reverse (102022241), we get a palindrome (244242442).

The spelling of 142220201 in words is "one hundred forty-two million, two hundred twenty thousand, two hundred one".