222222122211201 has 48 divisors (see below), whose sum is σ = 361735686048384. Its totient is φ = 120760924601856.

The previous prime is 222222122211143. The next prime is 222222122211217. The reversal of 222222122211201 is 102112221222222.

It is a happy number.

222222122211201 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 222222122211201 - 2¹⁷ = 222222122080129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222222122221201) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 189376776 + ... + 190546601.

It is an arithmetic number, because the mean of its divisors is an integer number (7536160126008).

Almost surely, 2^{222222122211201} is an apocalyptic number.

222222122211201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

222222122211201 is a deficient number, since it is larger than the sum of its proper divisors (139513563837183).

222222122211201 is a wasteful number, since it uses less digits than its factorization.

222222122211201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379923590 (or 379923583 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 222222122211201 its reverse (102112221222222), we get a palindrome (324334343433423).

The spelling of 222222122211201 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, one hundred twenty-two million, two hundred eleven thousand, two hundred one".