1231451200222 has 8 divisors (see below), whose sum is σ = 1847203875000. Its totient is φ = 615716575224.

The previous prime is 1231451200211. The next prime is 1231451200229. The reversal of 1231451200222 is 2220021541321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231451200229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4340572 + ... + 4615567.

It is an arithmetic number, because the mean of its divisors is an integer number (230900484375).

Almost surely, 2^{1231451200222} is an apocalyptic number.

1231451200222 is a deficient number, since it is larger than the sum of its proper divisors (615752674778).

1231451200222 is an equidigital number, since it uses as much as digits as its factorization.

1231451200222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9024890.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 1231451200222 its reverse (2220021541321), we get a palindrome (3451472741543).

The spelling of 1231451200222 in words is "one trillion, two hundred thirty-one billion, four hundred fifty-one million, two hundred thousand, two hundred twenty-two".