11421400122 has 192 divisors, whose sum is σ = 30795448320. Its totient is φ = 3014668800.

The previous prime is 11421400117. The next prime is 11421400141. The reversal of 11421400122 is 22100412411.

11421400122 is a `hidden beast` number, since 1 + 142 + 1 + 400 + 122 = 666.

It is a super-2 number, since 2×11421400122² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11421400095 and 11421400104.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2397579 + ... + 2402337.

It is an arithmetic number, because the mean of its divisors is an integer number (160392960).

Almost surely, 2^11421400122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11421400122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15397724160).

11421400122 is an abundant number, since it is smaller than the sum of its proper divisors (19374048198).

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

11421400122 is a wasteful number, since it uses less digits than its factorization.

11421400122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4849 (or 4846 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 11421400122 its reverse (22100412411), we get a palindrome (33521812533).

The spelling of 11421400122 in words is "eleven billion, four hundred twenty-one million, four hundred thousand, one hundred twenty-two".