212211002111 has 4 divisors (see below), whose sum is σ = 212225051424. Its totient is φ = 212196952800.

The previous prime is 212211002099. The next prime is 212211002137. The reversal of 212211002111 is 111200112212.

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 212211002111 - 2³⁴ = 195031132927 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 (212211002161) 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, 7001975 + ... + 7032216.

It is an arithmetic number, because the mean of its divisors is an integer number (53056262856).

Almost surely, 2^212211002111 is an apocalyptic number.

212211002111 is a deficient number, since it is larger than the sum of its proper divisors (14049313).

212211002111 is a wasteful number, since it uses less digits than its factorization.

212211002111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14049312.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 212211002111 its reverse (111200112212), we get a palindrome (323411114323).

The spelling of 212211002111 in words is "two hundred twelve billion, two hundred eleven million, two thousand, one hundred eleven".