203221132011312 has 20 divisors (see below), whose sum is σ = 524987924362680. Its totient is φ = 67740377337088.

The previous prime is 203221132011311. The next prime is 203221132011329. The reversal of 203221132011312 is 213110231122302.

It is a super-2 number, since 2×203221132011312² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (203221132011311) 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, 2116886791737 + ... + 2116886791832.

It is an arithmetic number, because the mean of its divisors is an integer number (26249396218134).

Almost surely, 2^{203221132011312} is an apocalyptic number.

It is an amenable number.

203221132011312 is an abundant number, since it is smaller than the sum of its proper divisors (321766792351368).

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

203221132011312 is a wasteful number, since it uses less digits than its factorization.

203221132011312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4233773583580 (or 4233773583574 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 203221132011312 its reverse (213110231122302), we get a palindrome (416331363133614).

The spelling of 203221132011312 in words is "two hundred three trillion, two hundred twenty-one billion, one hundred thirty-two million, eleven thousand, three hundred twelve".