221312103101211 has 16 divisors (see below), whose sum is σ = 302153289736320. Its totient is φ = 144010888694400.

The previous prime is 221312103101207. The next prime is 221312103101231. The reversal of 221312103101211 is 112101301213122.

It is not a de Polignac number, because 221312103101211 - 2² = 221312103101207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221312103101231) 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, 590990526 + ... + 591364883.

It is an arithmetic number, because the mean of its divisors is an integer number (18884580608520).

Almost surely, 2^{221312103101211} is an apocalyptic number.

221312103101211 is a deficient number, since it is larger than the sum of its proper divisors (80841186635109).

221312103101211 is a wasteful number, since it uses less digits than its factorization.

221312103101211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182356906.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 221312103101211 its reverse (112101301213122), we get a palindrome (333413404314333).

The spelling of 221312103101211 in words is "two hundred twenty-one trillion, three hundred twelve billion, one hundred three million, one hundred one thousand, two hundred eleven".