221122100211 has 8 divisors (see below), whose sum is σ = 307648139520. Its totient is φ = 141005397192.

The previous prime is 221122100197. The next prime is 221122100249. The reversal of 221122100211 is 112001221122.

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

It is not a de Polignac number, because 221122100211 - 2²¹ = 221120003059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221122100281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1602333991 + ... + 1602334128.

It is an arithmetic number, because the mean of its divisors is an integer number (38456017440).

Almost surely, 2^221122100211 is an apocalyptic number.

221122100211 is a deficient number, since it is larger than the sum of its proper divisors (86526039309).

221122100211 is a wasteful number, since it uses less digits than its factorization.

221122100211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3204668145.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 221122100211 its reverse (112001221122), we get a palindrome (333123321333).

The spelling of 221122100211 in words is "two hundred twenty-one billion, one hundred twenty-two million, one hundred thousand, two hundred eleven".