102001000210221 has 64 divisors (see below), whose sum is σ = 161695297437696. Its totient is φ = 55966304721600.

The previous prime is 102001000210177. The next prime is 102001000210273. The reversal of 102001000210221 is 122012000100201.

It is not a de Polignac number, because 102001000210221 - 2¹⁹ = 102000999685933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102001000210197 and 102001000210206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102001000210721) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 536066526 + ... + 536256768.

It is an arithmetic number, because the mean of its divisors is an integer number (2526489022464).

Almost surely, 2^{102001000210221} is an apocalyptic number.

It is an amenable number.

102001000210221 is a deficient number, since it is larger than the sum of its proper divisors (59694297227475).

102001000210221 is a wasteful number, since it uses less digits than its factorization.

102001000210221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196702.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 102001000210221 its reverse (122012000100201), we get a palindrome (224013000310422).

The spelling of 102001000210221 in words is "one hundred two trillion, one billion, two hundred ten thousand, two hundred twenty-one".