212202122331 has 16 divisors (see below), whose sum is σ = 291231350784. Its totient is φ = 137367889344.

The previous prime is 212202122323. The next prime is 212202122347. The reversal of 212202122331 is 133221202212.

It is not a de Polignac number, because 212202122331 - 2³ = 212202122323 is a prime.

It is a super-2 number, since 2×212202122331² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212202122298 and 212202122307.

It is not an unprimeable number, because it can be changed into a prime (212202122351) 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, 5907210 + ... + 5943023.

It is an arithmetic number, because the mean of its divisors is an integer number (18201959424).

Almost surely, 2^212202122331 is an apocalyptic number.

212202122331 is a deficient number, since it is larger than the sum of its proper divisors (79029228453).

212202122331 is a wasteful number, since it uses less digits than its factorization.

212202122331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11850410.

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

Adding to 212202122331 its reverse (133221202212), we get a palindrome (345423324543).

The spelling of 212202122331 in words is "two hundred twelve billion, two hundred two million, one hundred twenty-two thousand, three hundred thirty-one".