22201204032420 has 288 divisors, whose sum is σ = 75521663013888. Its totient is φ = 4849737032448.

The previous prime is 22201204032419. The next prime is 22201204032433. The reversal of 22201204032420 is 2423040210222.

It is a super-2 number, since 2×22201204032420² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 78500907 + ... + 78783213.

It is an arithmetic number, because the mean of its divisors is an integer number (262227996576).

Almost surely, 2^{22201204032420} is an apocalyptic number.

22201204032420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22201204032420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37760831506944).

22201204032420 is an abundant number, since it is smaller than the sum of its proper divisors (53320458981468).

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

22201204032420 is a wasteful number, since it uses less digits than its factorization.

22201204032420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283519 (or 283510 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 22201204032420 its reverse (2423040210222), we get a palindrome (24624244242642).

The spelling of 22201204032420 in words is "twenty-two trillion, two hundred one billion, two hundred four million, thirty-two thousand, four hundred twenty".