142222322420 has 24 divisors (see below), whose sum is σ = 305021493504. Its totient is φ = 55678525856.

The previous prime is 142222322413. The next prime is 142222322423. The reversal of 142222322420 is 24223222241.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 142222322420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142222322423) 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, 75649232 + ... + 75651111.

It is an arithmetic number, because the mean of its divisors is an integer number (12709228896).

Almost surely, 2^142222322420 is an apocalyptic number.

142222322420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142222322420 is an abundant number, since it is smaller than the sum of its proper divisors (162799171084).

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

142222322420 is a wasteful number, since it uses less digits than its factorization.

142222322420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151300399 (or 151300397 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 142222322420 its reverse (24223222241), we get a palindrome (166445544661).

The spelling of 142222322420 in words is "one hundred forty-two billion, two hundred twenty-two million, three hundred twenty-two thousand, four hundred twenty".