212440400122 has 8 divisors (see below), whose sum is σ = 318662618400. Its totient is φ = 106219527324.

The previous prime is 212440400089. The next prime is 212440400141. The reversal of 212440400122 is 221004044212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×212440400122² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212440400093 and 212440400102.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 296529 + ... + 716107.

It is an arithmetic number, because the mean of its divisors is an integer number (39832827300).

Almost surely, 2^212440400122 is an apocalyptic number.

212440400122 is a deficient number, since it is larger than the sum of its proper divisors (106222218278).

212440400122 is a wasteful number, since it uses less digits than its factorization.

212440400122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672740.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 212440400122 its reverse (221004044212), we get a palindrome (433444444334).

The spelling of 212440400122 in words is "two hundred twelve billion, four hundred forty million, four hundred thousand, one hundred twenty-two".