201442121122 has 16 divisors (see below), whose sum is σ = 332713243872. Its totient is φ = 90708855520.

The previous prime is 201442121071. The next prime is 201442121137. The reversal of 201442121122 is 221121244102.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 201442121093 and 201442121102.

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, 42784843 + ... + 42789550.

It is an arithmetic number, because the mean of its divisors is an integer number (20794577742).

Almost surely, 2^201442121122 is an apocalyptic number.

201442121122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

201442121122 is a deficient number, since it is larger than the sum of its proper divisors (131271122750).

201442121122 is a wasteful number, since it uses less digits than its factorization.

201442121122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85574513.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 201442121122 its reverse (221121244102), we get a palindrome (422563365224).

The spelling of 201442121122 in words is "two hundred one billion, four hundred forty-two million, one hundred twenty-one thousand, one hundred twenty-two".