122100212 has 12 divisors (see below), whose sum is σ = 230112036. Its totient is φ = 56353920.

The previous prime is 122100211. The next prime is 122100233. The reversal of 122100212 is 212001221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 22619536 + 99480676 = 4756^2 + 9974^2 .

It is a junction number, because it is equal to n+sod(n) for n = 122100193 and 122100202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122100211) 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, 1173989 + ... + 1174092.

It is an arithmetic number, because the mean of its divisors is an integer number (19176003).

Almost surely, 2^122100212 is an apocalyptic number.

It is an amenable number.

122100212 is a deficient number, since it is larger than the sum of its proper divisors (108011824).

122100212 is a wasteful number, since it uses less digits than its factorization.

122100212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2348098 (or 2348096 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 122100212 is about 11049.8964701032. The cubic root of 122100212 is about 496.1033267652.

Adding to 122100212 its reverse (212001221), we get a palindrome (334101433).

The spelling of 122100212 in words is "one hundred twenty-two million, one hundred thousand, two hundred twelve".