122105101442 has 24 divisors (see below), whose sum is σ = 202730072076. Its totient is φ = 54962902016.

The previous prime is 122105101439. The next prime is 122105101477. The reversal of 122105101442 is 244101501221.

It can be written as a sum of positive squares in 2 ways, for example, as 121529629321 + 575472121 = 348611^2 + 23989^2 .

It is a super-2 number, since 2×122105101442² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3376463 + ... + 3412434.

Almost surely, 2^122105101442 is an apocalyptic number.

122105101442 is a deficient number, since it is larger than the sum of its proper divisors (80624970634).

122105101442 is a wasteful number, since it uses less digits than its factorization.

122105101442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6788962 (or 6788939 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

Adding to 122105101442 its reverse (244101501221), we get a palindrome (366206602663).

The spelling of 122105101442 in words is "one hundred twenty-two billion, one hundred five million, one hundred one thousand, four hundred forty-two".