222121120201 has 4 divisors (see below), whose sum is σ = 222219102672. Its totient is φ = 222023137732.

The previous prime is 222121120189. The next prime is 222121120213. The reversal of 222121120201 is 102021121222.

It is a happy number.

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 an interprime number because it is at equal distance from previous prime (222121120189) and next prime (222121120213).

It is a cyclic number.

It is not a de Polignac number, because 222121120201 - 2³⁵ = 187761381833 is a prime.

It is a super-4 number, since 4×222121120201⁴ (a number of 46 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222121120261) 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, 48987835 + ... + 48992368.

It is an arithmetic number, because the mean of its divisors is an integer number (55554775668).

Almost surely, 2^222121120201 is an apocalyptic number.

It is an amenable number.

222121120201 is a deficient number, since it is larger than the sum of its proper divisors (97982471).

222121120201 is an equidigital number, since it uses as much as digits as its factorization.

222121120201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97982470.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 222121120201 its reverse (102021121222), we get a palindrome (324142241423).

The spelling of 222121120201 in words is "two hundred twenty-two billion, one hundred twenty-one million, one hundred twenty thousand, two hundred one".