20000221202101 has 8 divisors (see below), whose sum is σ = 22977067889664. Its totient is φ = 17053292572080.

The previous prime is 20000221202089. The next prime is 20000221202111. The reversal of 20000221202101 is 10120212200002.

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 20000221202101 - 2⁹ = 20000221201589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000221202111) 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, 7479512950 + ... + 7479515623.

It is an arithmetic number, because the mean of its divisors is an integer number (2872133486208).

Almost surely, 2^{20000221202101} is an apocalyptic number.

It is an amenable number.

20000221202101 is a deficient number, since it is larger than the sum of its proper divisors (2976846687563).

20000221202101 is a wasteful number, since it uses less digits than its factorization.

20000221202101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14959028771.

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

Adding to 20000221202101 its reverse (10120212200002), we get a palindrome (30120433402103).

The spelling of 20000221202101 in words is "twenty trillion, two hundred twenty-one million, two hundred two thousand, one hundred one".