212202122 has 16 divisors (see below), whose sum is σ = 347605344. Its totient is φ = 96354000.

The previous prime is 212202091. The next prime is 212202139. The reversal of 212202122 is 221202212.

212202122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 212202097 and 212202106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18797 + ... + 27887.

It is an arithmetic number, because the mean of its divisors is an integer number (21725334).

Almost surely, 2^212202122 is an apocalyptic number.

212202122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212202122 is a deficient number, since it is larger than the sum of its proper divisors (135403222).

212202122 is a wasteful number, since it uses less digits than its factorization.

212202122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10165.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 212202122 is about 14567.1590229530. The cubic root of 212202122 is about 596.4626323305.

Adding to 212202122 its reverse (221202212), we get a palindrome (433404334).

The spelling of 212202122 in words is "two hundred twelve million, two hundred two thousand, one hundred twenty-two".