11420212122 has 48 divisors (see below), whose sum is σ = 27924043680. Its totient is φ = 3341335200.

The previous prime is 11420212121. The next prime is 11420212129. The reversal of 11420212122 is 22121202411.

11420212122 is a `hidden beast` number, since 11 + 420 + 21 + 212 + 2 = 666.

11420212122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11420212122² (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 = 11420212095 and 11420212104.

It is not an unprimeable number, because it can be changed into a prime (11420212121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 988704 + ... + 1000187.

It is an arithmetic number, because the mean of its divisors is an integer number (581750910).

Almost surely, 2^11420212122 is an apocalyptic number.

11420212122 is an abundant number, since it is smaller than the sum of its proper divisors (16503831558).

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

11420212122 is a wasteful number, since it uses less digits than its factorization.

11420212122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1988939 (or 1988936 counting only the distinct ones).

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

Adding to 11420212122 its reverse (22121202411), we get a palindrome (33541414533).

The spelling of 11420212122 in words is "eleven billion, four hundred twenty million, two hundred twelve thousand, one hundred twenty-two".