142204112022 has 64 divisors (see below), whose sum is σ = 344253832704. Its totient is φ = 38229096960.

The previous prime is 142204111967. The next prime is 142204112027. The reversal of 142204112022 is 220211402241.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 142204112022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142204112027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2725197 + ... + 2776887.

It is an arithmetic number, because the mean of its divisors is an integer number (5378966136).

Almost surely, 2^142204112022 is an apocalyptic number.

142204112022 is an abundant number, since it is smaller than the sum of its proper divisors (202049720682).

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

142204112022 is a wasteful number, since it uses less digits than its factorization.

142204112022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55573.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 142204112022 its reverse (220211402241), we get a palindrome (362415514263).

The spelling of 142204112022 in words is "one hundred forty-two billion, two hundred four million, one hundred twelve thousand, twenty-two".