142220013420 has 48 divisors (see below), whose sum is σ = 398269172448. Its totient is φ = 37920276480.

The previous prime is 142220013413. The next prime is 142220013427. The reversal of 142220013420 is 24310022241.

It is an interprime number because it is at equal distance from previous prime (142220013413) and next prime (142220013427).

It is not an unprimeable number, because it can be changed into a prime (142220013427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 306562 + ... + 615158.

It is an arithmetic number, because the mean of its divisors is an integer number (8297274426).

Almost surely, 2^142220013420 is an apocalyptic number.

142220013420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142220013420 is an abundant number, since it is smaller than the sum of its proper divisors (256049159028).

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

142220013420 is a wasteful number, since it uses less digits than its factorization.

142220013420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316290 (or 316288 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 142220013420 its reverse (24310022241), we get a palindrome (166530035661).

The spelling of 142220013420 in words is "one hundred forty-two billion, two hundred twenty million, thirteen thousand, four hundred twenty".