224121231012 has 48 divisors (see below), whose sum is σ = 599783571072. Its totient is φ = 63806749440.

The previous prime is 224121230969. The next prime is 224121231017. The reversal of 224121231012 is 210132121422.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 224121231012.

It is not an unprimeable number, because it can be changed into a prime (224121231017) 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, 4723923 + ... + 4771130.

It is an arithmetic number, because the mean of its divisors is an integer number (12495491064).

Almost surely, 2^224121231012 is an apocalyptic number.

It is an amenable number.

224121231012 is an abundant number, since it is smaller than the sum of its proper divisors (375662340060).

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

224121231012 is a wasteful number, since it uses less digits than its factorization.

224121231012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9495348 (or 9495346 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 224121231012 its reverse (210132121422), we get a palindrome (434253352434).

The spelling of 224121231012 in words is "two hundred twenty-four billion, one hundred twenty-one million, two hundred thirty-one thousand, twelve".