221012202001 has 8 divisors (see below), whose sum is σ = 228303590400. Its totient is φ = 213730936320.

The previous prime is 221012201987. The next prime is 221012202007. The reversal of 221012202001 is 100202210122.

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 221012202001 - 2¹⁹ = 221011677713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221012202007) 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, 2486281 + ... + 2573638.

It is an arithmetic number, because the mean of its divisors is an integer number (28537948800).

Almost surely, 2^221012202001 is an apocalyptic number.

It is an amenable number.

221012202001 is a deficient number, since it is larger than the sum of its proper divisors (7291388399).

221012202001 is a wasteful number, since it uses less digits than its factorization.

221012202001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5061359.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 221012202001 its reverse (100202210122), we get a palindrome (321214412123).

The spelling of 221012202001 in words is "two hundred twenty-one billion, twelve million, two hundred two thousand, one".