201442143122 has 16 divisors (see below), whose sum is σ = 330419325600. Its totient is φ = 91346075040.

The previous prime is 201442143107. The next prime is 201442143137. The reversal of 201442143122 is 221341244102.

It is an interprime number because it is at equal distance from previous prime (201442143107) and next prime (201442143137).

It is a junction number, because it is equal to n+sod(n) for n = 201442143091 and 201442143100.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10917347 + ... + 10935782.

It is an arithmetic number, because the mean of its divisors is an integer number (20651207850).

Almost surely, 2^201442143122 is an apocalyptic number.

201442143122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

201442143122 is a deficient number, since it is larger than the sum of its proper divisors (128977182478).

201442143122 is a wasteful number, since it uses less digits than its factorization.

201442143122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21853561.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 201442143122 its reverse (221341244102), we get a palindrome (422783387224).

The spelling of 201442143122 in words is "two hundred one billion, four hundred forty-two million, one hundred forty-three thousand, one hundred twenty-two".