212122039 has 8 divisors (see below), whose sum is σ = 224825328. Its totient is φ = 199443840.

The previous prime is 212122019. The next prime is 212122049. The reversal of 212122039 is 930221212.

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

It is a cyclic number.

It is not a de Polignac number, because 212122039 - 2⁵ = 212122007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212122019) 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, 12829 + ... + 24265.

It is an arithmetic number, because the mean of its divisors is an integer number (28103166).

Almost surely, 2^212122039 is an apocalyptic number.

212122039 is a deficient number, since it is larger than the sum of its proper divisors (12703289).

212122039 is a wasteful number, since it uses less digits than its factorization.

212122039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12545.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 212122039 is about 14564.4100120808. The cubic root of 212122039 is about 596.3875898401.

The spelling of 212122039 in words is "two hundred twelve million, one hundred twenty-two thousand, thirty-nine".