212022001 has 4 divisors (see below), whose sum is σ = 212053104. Its totient is φ = 211990900.

The previous prime is 212021993. The next prime is 212022023. The reversal of 212022001 is 100220212.

212022001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 212022001 - 2³ = 212021993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212022071) 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, 415 + ... + 20596.

It is an arithmetic number, because the mean of its divisors is an integer number (53013276).

Almost surely, 2^212022001 is an apocalyptic number.

It is an amenable number.

212022001 is a deficient number, since it is larger than the sum of its proper divisors (31103).

212022001 is a wasteful number, since it uses less digits than its factorization.

212022001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31102.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 212022001 is about 14560.9752764023. The cubic root of 212022001 is about 596.2938218008.

Adding to 212022001 its reverse (100220212), we get a palindrome (312242213).

The spelling of 212022001 in words is "two hundred twelve million, twenty-two thousand, one".