212129044 has 12 divisors (see below), whose sum is σ = 372597568. Its totient is φ = 105672600.

The previous prime is 212129041. The next prime is 212129051. The reversal of 212129044 is 440921212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212129041) 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, 96762 + ... + 98929.

Almost surely, 2^212129044 is an apocalyptic number.

It is an amenable number.

212129044 is a deficient number, since it is larger than the sum of its proper divisors (160468524).

212129044 is a wasteful number, since it uses less digits than its factorization.

212129044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195966 (or 195964 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 212129044 is about 14564.6504935752. The cubic root of 212129044 is about 596.3941546916.

The spelling of 212129044 in words is "two hundred twelve million, one hundred twenty-nine thousand, forty-four".