212422101 has 8 divisors (see below), whose sum is σ = 283352640. Its totient is φ = 141553152.

The previous prime is 212422087. The next prime is 212422127. The reversal of 212422101 is 101224212.

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

It is not a de Polignac number, because 212422101 - 2¹³ = 212413909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212422151) 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, 6636 + ... + 21653.

It is an arithmetic number, because the mean of its divisors is an integer number (35419080).

Almost surely, 2^212422101 is an apocalyptic number.

It is an amenable number.

212422101 is a deficient number, since it is larger than the sum of its proper divisors (70930539).

212422101 is a wasteful number, since it uses less digits than its factorization.

212422101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30795.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 212422101 is about 14574.7075785417. The cubic root of 212422101 is about 596.6686685048.

Adding to 212422101 its reverse (101224212), we get a palindrome (313646313).

The spelling of 212422101 in words is "two hundred twelve million, four hundred twenty-two thousand, one hundred one".