2111022221211 has 80 divisors (see below), whose sum is σ = 3233500129728. Its totient is φ = 1372121856000.

The previous prime is 2111022221177. The next prime is 2111022221293. The reversal of 2111022221211 is 1121222201112.

2111022221211 is a `hidden beast` number, since 211 + 1 + 0 + 22 + 221 + 211 = 666.

It is not a de Polignac number, because 2111022221211 - 2¹⁷ = 2111022090139 is a prime.

It is a super-4 number, since 4×2111022221211⁴ (a number of 50 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (2111022221311) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 637191891 + ... + 637195203.

Almost surely, 2^{2111022221211} is an apocalyptic number.

2111022221211 is a deficient number, since it is larger than the sum of its proper divisors (1122477908517).

2111022221211 is a wasteful number, since it uses less digits than its factorization.

2111022221211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4594 (or 4585 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 2111022221211 its reverse (1121222201112), we get a palindrome (3232244422323).

The spelling of 2111022221211 in words is "two trillion, one hundred eleven billion, twenty-two million, two hundred twenty-one thousand, two hundred eleven".