1231421050022 has 4 divisors (see below), whose sum is σ = 1847131575036. Its totient is φ = 615710525010.

The previous prime is 1231421050007. The next prime is 1231421050061. The reversal of 1231421050022 is 2200501241321.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1231421050022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307855262504 + ... + 307855262507.

It is an arithmetic number, because the mean of its divisors is an integer number (461782893759).

Almost surely, 2^{1231421050022} is an apocalyptic number.

1231421050022 is a deficient number, since it is larger than the sum of its proper divisors (615710525014).

1231421050022 is an equidigital number, since it uses as much as digits as its factorization.

1231421050022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615710525013.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 1231421050022 its reverse (2200501241321), we get a palindrome (3431922291343).

The spelling of 1231421050022 in words is "one trillion, two hundred thirty-one billion, four hundred twenty-one million, fifty thousand, twenty-two".