212212032021 has 24 divisors (see below), whose sum is σ = 334419309120. Its totient is φ = 128603894400.

The previous prime is 212212031981. The next prime is 212212032037. The reversal of 212212032021 is 120230212212.

It is not a de Polignac number, because 212212032021 - 2¹¹ = 212212029973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212212031985 and 212212032003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212212032421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1416765 + ... + 1559373.

It is an arithmetic number, because the mean of its divisors is an integer number (13934137880).

Almost surely, 2^212212032021 is an apocalyptic number.

It is an amenable number.

212212032021 is a deficient number, since it is larger than the sum of its proper divisors (122207277099).

212212032021 is a wasteful number, since it uses less digits than its factorization.

212212032021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157657 (or 157654 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 212212032021 its reverse (120230212212), we get a palindrome (332442244233).

The spelling of 212212032021 in words is "two hundred twelve billion, two hundred twelve million, thirty-two thousand, twenty-one".