212033138 has 16 divisors (see below), whose sum is σ = 326661120. Its totient is φ = 103182000.

The previous prime is 212033137. The next prime is 212033147. The reversal of 212033138 is 831330212.

It is a super-2 number, since 2×212033138² = 89916103220254088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212033131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3023 + ... + 20813.

It is an arithmetic number, because the mean of its divisors is an integer number (20416320).

Almost surely, 2^212033138 is an apocalyptic number.

212033138 is a deficient number, since it is larger than the sum of its proper divisors (114627982).

212033138 is a wasteful number, since it uses less digits than its factorization.

212033138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17953.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 212033138 is about 14561.3576976874. The cubic root of 212033138 is about 596.3042622393.

The spelling of 212033138 in words is "two hundred twelve million, thirty-three thousand, one hundred thirty-eight".