222421421031400 has 96 divisors (see below), whose sum is σ = 561906748166400. Its totient is φ = 81567108518400.

The previous prime is 222421421031389. The next prime is 222421421031401. The reversal of 222421421031400 is 4130124124222.

It is not an unprimeable number, because it can be changed into a prime (222421421031401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 943945957 + ... + 944181556.

It is an arithmetic number, because the mean of its divisors is an integer number (5853195293400).

Almost surely, 2^{222421421031400} is an apocalyptic number.

222421421031400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222421421031400 is an abundant number, since it is smaller than the sum of its proper divisors (339485327135000).

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

222421421031400 is a wasteful number, since it uses less digits than its factorization.

222421421031400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1888127579 (or 1888127570 counting only the distinct ones).

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

Adding to 222421421031400 its reverse (4130124124222), we get a palindrome (226551545155622).

The spelling of 222421421031400 in words is "two hundred twenty-two trillion, four hundred twenty-one billion, four hundred twenty-one million, thirty-one thousand, four hundred".