212022120002111 has 4 divisors (see below), whose sum is σ = 215497892461224. Its totient is φ = 208546347543000.

The previous prime is 212022120002057. The next prime is 212022120002117. The reversal of 212022120002111 is 111200021220212.

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 212022120002111 - 2⁴² = 207624073491007 is a prime.

It is a super-3 number, since 3×212022120002111³ (a number of 44 digits) contains 333 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 212022120002111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212022120002117) 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, 1737886229465 + ... + 1737886229586.

It is an arithmetic number, because the mean of its divisors is an integer number (53874473115306).

Almost surely, 2^{212022120002111} is an apocalyptic number.

212022120002111 is a deficient number, since it is larger than the sum of its proper divisors (3475772459113).

212022120002111 is an equidigital number, since it uses as much as digits as its factorization.

212022120002111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3475772459112.

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

Adding to 212022120002111 its reverse (111200021220212), we get a palindrome (323222141222323).

The spelling of 212022120002111 in words is "two hundred twelve trillion, twenty-two billion, one hundred twenty million, two thousand, one hundred eleven".