221010010201 has 4 divisors (see below), whose sum is σ = 221157450000. Its totient is φ = 220862570404.

The previous prime is 221010010187. The next prime is 221010010211. The reversal of 221010010201 is 102010010122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 221010010201 - 2⁷ = 221010010073 is a prime.

It is a super-2 number, since 2×221010010201² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221010010211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73717651 + ... + 73720648.

It is an arithmetic number, because the mean of its divisors is an integer number (55289362500).

Almost surely, 2^221010010201 is an apocalyptic number.

It is an amenable number.

221010010201 is a deficient number, since it is larger than the sum of its proper divisors (147439799).

221010010201 is a wasteful number, since it uses less digits than its factorization.

221010010201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147439798.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 221010010201 its reverse (102010010122), we get a palindrome (323020020323).

The spelling of 221010010201 in words is "two hundred twenty-one billion, ten million, ten thousand, two hundred one".