2101222134424 has 48 divisors (see below), whose sum is σ = 4613781438000. Its totient is φ = 894479963328.

The previous prime is 2101222134421. The next prime is 2101222134443. The reversal of 2101222134424 is 4244312221012.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 2101222134392 and 2101222134401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101222134421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17929044 + ... + 18045859.

It is an arithmetic number, because the mean of its divisors is an integer number (96120446625).

Almost surely, 2^{2101222134424} is an apocalyptic number.

It is an amenable number.

2101222134424 is an abundant number, since it is smaller than the sum of its proper divisors (2512559303576).

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

2101222134424 is a wasteful number, since it uses less digits than its factorization.

2101222134424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35975072 (or 35975061 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 2101222134424 its reverse (4244312221012), we get a palindrome (6345534355436).

The spelling of 2101222134424 in words is "two trillion, one hundred one billion, two hundred twenty-two million, one hundred thirty-four thousand, four hundred twenty-four".