221201011011202 has 8 divisors (see below), whose sum is σ = 331908239432700. Its totient is φ = 110564931200304.

The previous prime is 221201011011199. The next prime is 221201011011209. The reversal of 221201011011202 is 202110110102122.

It can be written as a sum of positive squares in 2 ways, for example, as 214569206608761 + 6631804402441 = 14648181^2 + 2575229^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (221201011011209) 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, 17787144877 + ... + 17787157312.

Almost surely, 2^{221201011011202} is an apocalyptic number.

221201011011202 is a deficient number, since it is larger than the sum of its proper divisors (110707228421498).

221201011011202 is a wasteful number, since it uses less digits than its factorization.

221201011011202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35574305300.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 221201011011202 its reverse (202110110102122), we get a palindrome (423311121113324).

The spelling of 221201011011202 in words is "two hundred twenty-one trillion, two hundred one billion, eleven million, eleven thousand, two hundred two".