2123151222224 has 80 divisors (see below), whose sum is σ = 4319459965440. Its totient is φ = 1009641431040.

The previous prime is 2123151222221. The next prime is 2123151222229. The reversal of 2123151222224 is 4222221513212.

It is a super-2 number, since 2×2123151222224² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123151222221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140254784 + ... + 140269920.

It is an arithmetic number, because the mean of its divisors is an integer number (53993249568).

Almost surely, 2^{2123151222224} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2123151222224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2159729982720).

2123151222224 is an abundant number, since it is smaller than the sum of its proper divisors (2196308743216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2123151222224 is a wasteful number, since it uses less digits than its factorization.

2123151222224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20028 (or 20022 counting only the distinct ones).

The product of its digits is 7680, while the sum is 29.

Adding to 2123151222224 its reverse (4222221513212), we get a palindrome (6345372735436).

The spelling of 2123151222224 in words is "two trillion, one hundred twenty-three billion, one hundred fifty-one million, two hundred twenty-two thousand, two hundred twenty-four".