211111212022 has 16 divisors (see below), whose sum is σ = 318973047120. Its totient is φ = 104786996832.

The previous prime is 211111211989. The next prime is 211111212049. The reversal of 211111212022 is 220212111112.

It is a junction number, because it is equal to n+sod(n) for n = 211111211987 and 211111212005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4014048 + ... + 4066300.

It is an arithmetic number, because the mean of its divisors is an integer number (19935815445).

Almost surely, 2^211111212022 is an apocalyptic number.

211111212022 is a deficient number, since it is larger than the sum of its proper divisors (107861835098).

211111212022 is a wasteful number, since it uses less digits than its factorization.

211111212022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66927.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 211111212022 its reverse (220212111112), we get a palindrome (431323323134).

The spelling of 211111212022 in words is "two hundred eleven billion, one hundred eleven million, two hundred twelve thousand, twenty-two".