2201021211123 has 48 divisors (see below), whose sum is σ = 3728068344000. Its totient is φ = 1250777324160.

The previous prime is 2201021211097. The next prime is 2201021211127. The reversal of 2201021211123 is 3211121201022.

It is not a de Polignac number, because 2201021211123 - 2²¹ = 2201019113971 is a prime.

It is a super-2 number, since 2×2201021211123² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2201021211096 and 2201021211105.

It is not an unprimeable number, because it can be changed into a prime (2201021211127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1410858 + ... + 2528351.

It is an arithmetic number, because the mean of its divisors is an integer number (77668090500).

Almost surely, 2^{2201021211123} is an apocalyptic number.

2201021211123 is a deficient number, since it is larger than the sum of its proper divisors (1527047132877).

2201021211123 is a wasteful number, since it uses less digits than its factorization.

2201021211123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3939417 (or 3939400 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 2201021211123 its reverse (3211121201022), we get a palindrome (5412142412145).

The spelling of 2201021211123 in words is "two trillion, two hundred one billion, twenty-one million, two hundred eleven thousand, one hundred twenty-three".