210222221131 has 4 divisors (see below), whose sum is σ = 226393161232. Its totient is φ = 194051281032.

The previous prime is 210222221107. The next prime is 210222221137. The reversal of 210222221131 is 131122222012.

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

It is a cyclic number.

It is not a de Polignac number, because 210222221131 - 2¹¹ = 210222219083 is a prime.

It is a super-2 number, since 2×210222221131² (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 = 210222221099 and 210222221108.

It is not an unprimeable number, because it can be changed into a prime (210222221137) 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, 8085470031 + ... + 8085470056.

It is an arithmetic number, because the mean of its divisors is an integer number (56598290308).

Almost surely, 2^210222221131 is an apocalyptic number.

210222221131 is a deficient number, since it is larger than the sum of its proper divisors (16170940101).

210222221131 is a wasteful number, since it uses less digits than its factorization.

210222221131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16170940100.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 210222221131 its reverse (131122222012), we get a palindrome (341344443143).

The spelling of 210222221131 in words is "two hundred ten billion, two hundred twenty-two million, two hundred twenty-one thousand, one hundred thirty-one".