212202212223031 has 4 divisors (see below), whose sum is σ = 224684695294992. Its totient is φ = 199719729151072.

The previous prime is 212202212222983. The next prime is 212202212223083. The reversal of 212202212223031 is 130322212202212.

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 212202212223031 - 2¹¹ = 212202212220983 is a prime.

It is a super-2 number, since 2×212202212223031² (a number of 29 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 = 212202212222987 and 212202212223005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212202212023031) 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, 6241241535955 + ... + 6241241535988.

It is an arithmetic number, because the mean of its divisors is an integer number (56171173823748).

Almost surely, 2^{212202212223031} is an apocalyptic number.

212202212223031 is a deficient number, since it is larger than the sum of its proper divisors (12482483071961).

212202212223031 is a wasteful number, since it uses less digits than its factorization.

212202212223031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12482483071960.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 212202212223031 its reverse (130322212202212), we get a palindrome (342524424425243).

The spelling of 212202212223031 in words is "two hundred twelve trillion, two hundred two billion, two hundred twelve million, two hundred twenty-three thousand, thirty-one".