142221310340 has 48 divisors (see below), whose sum is σ = 300458289600. Its totient is φ = 56547165312.

The previous prime is 142221310321. The next prime is 142221310381. The reversal of 142221310340 is 43013122241.

It is a super-2 number, since 2×142221310340² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10436051 + ... + 10449669.

It is an arithmetic number, because the mean of its divisors is an integer number (6259547700).

Almost surely, 2^142221310340 is an apocalyptic number.

142221310340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142221310340 is an abundant number, since it is smaller than the sum of its proper divisors (158236979260).

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

142221310340 is a wasteful number, since it uses less digits than its factorization.

142221310340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16724 (or 16722 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 142221310340 its reverse (43013122241), we get a palindrome (185234432581).

The spelling of 142221310340 in words is "one hundred forty-two billion, two hundred twenty-one million, three hundred ten thousand, three hundred forty".