212122100020001 has 8 divisors (see below), whose sum is σ = 214466776642560. Its totient is φ = 209787961270608.

The previous prime is 212122100019989. The next prime is 212122100020007. The reversal of 212122100020001 is 100020001221212.

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 212122100020001 - 2⁶ = 212122100019937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212122100020007) 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, 2634427811 + ... + 2634508328.

It is an arithmetic number, because the mean of its divisors is an integer number (26808347080320).

Almost surely, 2^{212122100020001} is an apocalyptic number.

It is an amenable number.

212122100020001 is a deficient number, since it is larger than the sum of its proper divisors (2344676622559).

212122100020001 is a wasteful number, since it uses less digits than its factorization.

212122100020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5268936583.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 212122100020001 its reverse (100020001221212), we get a palindrome (312142101241213).

The spelling of 212122100020001 in words is "two hundred twelve trillion, one hundred twenty-two billion, one hundred million, twenty thousand, one".