42210021124 has 6 divisors (see below), whose sum is σ = 73867536974. Its totient is φ = 21105010560.

The previous prime is 42210021109. The next prime is 42210021131. The reversal of 42210021124 is 42112001224.

It can be written as a sum of positive squares in only one way, i.e., 22150964224 + 20059056900 = 148832^2 + 141630^2 .

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 as a sum of consecutive naturals, namely, 5276252637 + ... + 5276252644.

Almost surely, 2^42210021124 is an apocalyptic number.

It is an amenable number.

42210021124 is a deficient number, since it is larger than the sum of its proper divisors (31657515850).

42210021124 is a wasteful number, since it uses less digits than its factorization.

42210021124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10552505285 (or 10552505283 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 42210021124 its reverse (42112001224), we get a palindrome (84322022348).

The spelling of 42210021124 in words is "forty-two billion, two hundred ten million, twenty-one thousand, one hundred twenty-four".