212321000001 has 16 divisors (see below), whose sum is σ = 308872808640. Its totient is φ = 128661784320.

The previous prime is 212320999999. The next prime is 212321000041. The reversal of 212321000001 is 100000123212.

It is not a de Polignac number, because 212321000001 - 2¹ = 212320999999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212321000041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193380 + ... + 679733.

It is an arithmetic number, because the mean of its divisors is an integer number (19304550540).

Almost surely, 2^212321000001 is an apocalyptic number.

It is an amenable number.

212321000001 is a deficient number, since it is larger than the sum of its proper divisors (96551808639).

212321000001 is a wasteful number, since it uses less digits than its factorization.

212321000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880496.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 212321000001 its reverse (100000123212), we get a palindrome (312321123213).

The spelling of 212321000001 in words is "two hundred twelve billion, three hundred twenty-one million, one", and thus it is an aban number.