221010222201 has 16 divisors (see below), whose sum is σ = 299110573440. Its totient is φ = 145128896640.

The previous prime is 221010222197. The next prime is 221010222271. The reversal of 221010222201 is 102222010122.

It is not a de Polignac number, because 221010222201 - 2² = 221010222197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221010222271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257620 + ... + 713013.

It is an arithmetic number, because the mean of its divisors is an integer number (18694410840).

Almost surely, 2^221010222201 is an apocalyptic number.

It is an amenable number.

221010222201 is a deficient number, since it is larger than the sum of its proper divisors (78100351239).

221010222201 is a wasteful number, since it uses less digits than its factorization.

221010222201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971776.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 221010222201 its reverse (102222010122), we get a palindrome (323232232323).

It can be divided in two parts, 221010 and 222201, that added together give a triangular number (443211 = T₉₄₁).

The spelling of 221010222201 in words is "two hundred twenty-one billion, ten million, two hundred twenty-two thousand, two hundred one".