210042122331 has 16 divisors (see below), whose sum is σ = 283995092480. Its totient is φ = 138060002880.

The previous prime is 210042122309. The next prime is 210042122357. The reversal of 210042122331 is 133221240012.

It is not a de Polignac number, because 210042122331 - 2⁵ = 210042122299 is a prime.

It is a super-2 number, since 2×210042122331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210042122298 and 210042122307.

It is not an unprimeable number, because it can be changed into a prime (210042122131) 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, 439410 + ... + 783048.

It is an arithmetic number, because the mean of its divisors is an integer number (17749693280).

Almost surely, 2^210042122331 is an apocalyptic number.

210042122331 is a deficient number, since it is larger than the sum of its proper divisors (73952970149).

210042122331 is a wasteful number, since it uses less digits than its factorization.

210042122331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346506.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 210042122331 its reverse (133221240012), we get a palindrome (343263362343).

The spelling of 210042122331 in words is "two hundred ten billion, forty-two million, one hundred twenty-two thousand, three hundred thirty-one".