212002122031 has 12 divisors (see below), whose sum is σ = 247701134808. Its totient is φ = 180915583632.

The previous prime is 212002121953. The next prime is 212002122043. The reversal of 212002122031 is 130221200212.

It is a happy number.

It is not a de Polignac number, because 212002122031 - 2¹³ = 212002113839 is a prime.

It is a super-2 number, since 2×212002122031² (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 = 212002121996 and 212002122014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212002122091) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9518776 + ... + 9541021.

It is an arithmetic number, because the mean of its divisors is an integer number (20641761234).

Almost surely, 2^212002122031 is an apocalyptic number.

212002122031 is a deficient number, since it is larger than the sum of its proper divisors (35699012777).

212002122031 is a wasteful number, since it uses less digits than its factorization.

212002122031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19060038 (or 19060031 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 212002122031 its reverse (130221200212), we get a palindrome (342223322243).

The spelling of 212002122031 in words is "two hundred twelve billion, two million, one hundred twenty-two thousand, thirty-one".