2211211101123 has 28 divisors (see below), whose sum is σ = 3315830138968. Its totient is φ = 1473905030400.

The previous prime is 2211211101109. The next prime is 2211211101133. The reversal of 2211211101123 is 3211011121122.

It is a happy number.

It is not a de Polignac number, because 2211211101123 - 2¹⁶ = 2211211035587 is a prime.

It is a super-2 number, since 2×2211211101123² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2211211101096 and 2211211101105.

It is not an unprimeable number, because it can be changed into a prime (2211211101133) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 4380348 + ... + 4858998.

Almost surely, 2^{2211211101123} is an apocalyptic number.

2211211101123 is a deficient number, since it is larger than the sum of its proper divisors (1104619037845).

2211211101123 is an frugal number, since it uses more digits than its factorization.

2211211101123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485006 (or 484991 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 2211211101123 its reverse (3211011121122), we get a palindrome (5422222222245).

The spelling of 2211211101123 in words is "two trillion, two hundred eleven billion, two hundred eleven million, one hundred one thousand, one hundred twenty-three".