222100101120221 has 4 divisors (see below), whose sum is σ = 222149643864192. Its totient is φ = 222050558376252.

The previous prime is 222100101120199. The next prime is 222100101120259. The reversal of 222100101120221 is 122021101001222.

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 a de Polignac number, because none of the positive numbers 2^k-222100101120221 is a prime.

It is a super-2 number, since 2×222100101120221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222100101120221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222100101020221) 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, 24771365261 + ... + 24771374226.

It is an arithmetic number, because the mean of its divisors is an integer number (55537410966048).

Almost surely, 2^{222100101120221} is an apocalyptic number.

It is an amenable number.

222100101120221 is a deficient number, since it is larger than the sum of its proper divisors (49542743971).

222100101120221 is an equidigital number, since it uses as much as digits as its factorization.

222100101120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49542743970.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 222100101120221 its reverse (122021101001222), we get a palindrome (344121202121443).

The spelling of 222100101120221 in words is "two hundred twenty-two trillion, one hundred billion, one hundred one million, one hundred twenty thousand, two hundred twenty-one".