212022101 has 8 divisors (see below), whose sum is σ = 218125440. Its totient is φ = 205996752.

The previous prime is 212022091. The next prime is 212022143. The reversal of 212022101 is 101220212.

It is a happy number.

212022101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 212022101 - 2²² = 207827797 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 (212022191) 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, 13961 + ... + 24878.

It is an arithmetic number, because the mean of its divisors is an integer number (27265680).

Almost surely, 2^212022101 is an apocalyptic number.

It is an amenable number.

212022101 is a deficient number, since it is larger than the sum of its proper divisors (6103339).

212022101 is a wasteful number, since it uses less digits than its factorization.

212022101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38995.

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

The square root of 212022101 is about 14560.9787102379. The cubic root of 212022101 is about 596.2939155479.

Adding to 212022101 its reverse (101220212), we get a palindrome (313242313).

The spelling of 212022101 in words is "two hundred twelve million, twenty-two thousand, one hundred one".