210022120031 has 4 divisors (see below), whose sum is σ = 212101547064. Its totient is φ = 207942693000.

The previous prime is 210022119997. The next prime is 210022120037. The reversal of 210022120031 is 130021220012.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210022120031 is a prime.

It is a super-2 number, since 2×210022120031² (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 = 210022119988 and 210022120015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210022120037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1039713365 + ... + 1039713566.

It is an arithmetic number, because the mean of its divisors is an integer number (53025386766).

Almost surely, 2^210022120031 is an apocalyptic number.

210022120031 is a deficient number, since it is larger than the sum of its proper divisors (2079427033).

210022120031 is a wasteful number, since it uses less digits than its factorization.

210022120031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2079427032.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 210022120031 its reverse (130021220012), we get a palindrome (340043340043).

The spelling of 210022120031 in words is "two hundred ten billion, twenty-two million, one hundred twenty thousand, thirty-one".