212222210020111 has 4 divisors (see below), whose sum is σ = 213102800103424. Its totient is φ = 211341619936800.

The previous prime is 212222210020103. The next prime is 212222210020129. The reversal of 212222210020111 is 111020012222212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212222210020111 - 2³ = 212222210020103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212222210020411) 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, 440295041295 + ... + 440295041776.

It is an arithmetic number, because the mean of its divisors is an integer number (53275700025856).

Almost surely, 2^{212222210020111} is an apocalyptic number.

212222210020111 is a deficient number, since it is larger than the sum of its proper divisors (880590083313).

212222210020111 is an equidigital number, since it uses as much as digits as its factorization.

212222210020111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880590083312.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 212222210020111 its reverse (111020012222212), we get a palindrome (323242222242323).

The spelling of 212222210020111 in words is "two hundred twelve trillion, two hundred twenty-two billion, two hundred ten million, twenty thousand, one hundred eleven".