22011420400420 has 48 divisors (see below), whose sum is σ = 50426606276928. Its totient is φ = 8004082527360.

The previous prime is 22011420400381. The next prime is 22011420400427. The reversal of 22011420400420 is 2400402411022.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 22011420400391 and 22011420400400.

It is not an unprimeable number, because it can be changed into a prime (22011420400427) 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, 29171947 + ... + 29916973.

It is an arithmetic number, because the mean of its divisors is an integer number (1050554297436).

Almost surely, 2^{22011420400420} is an apocalyptic number.

22011420400420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22011420400420 is an abundant number, since it is smaller than the sum of its proper divisors (28415185876508).

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

22011420400420 is a wasteful number, since it uses less digits than its factorization.

22011420400420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879340 (or 879338 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 22011420400420 its reverse (2400402411022), we get a palindrome (24411822811442).

The spelling of 22011420400420 in words is "twenty-two trillion, eleven billion, four hundred twenty million, four hundred thousand, four hundred twenty".