212022211021 has 8 divisors (see below), whose sum is σ = 212481762624. Its totient is φ = 211562759520.

The previous prime is 212022211007. The next prime is 212022211057. The reversal of 212022211021 is 120112220212.

It is a happy number.

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 212022211021 - 2⁵ = 212022210989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212022210986 and 212022211004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212022211001) 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, 5538081 + ... + 5576233.

It is an arithmetic number, because the mean of its divisors is an integer number (26560220328).

Almost surely, 2^212022211021 is an apocalyptic number.

It is an amenable number.

212022211021 is a deficient number, since it is larger than the sum of its proper divisors (459551603).

212022211021 is a wasteful number, since it uses less digits than its factorization.

212022211021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50051.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212022211021 its reverse (120112220212), we get a palindrome (332134431233).

The spelling of 212022211021 in words is "two hundred twelve billion, twenty-two million, two hundred eleven thousand, twenty-one".