203121201122 has 16 divisors (see below), whose sum is σ = 351402342720. Its totient is φ = 86253301008.

The previous prime is 203121201119. The next prime is 203121201137. The reversal of 203121201122 is 221102121302.

It is a self number, because there is not a number n which added to its sum of digits gives 203121201122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66551948 + ... + 66554999.

It is an arithmetic number, because the mean of its divisors is an integer number (21962646420).

Almost surely, 2^203121201122 is an apocalyptic number.

203121201122 is a deficient number, since it is larger than the sum of its proper divisors (148281141598).

203121201122 is a wasteful number, since it uses less digits than its factorization.

203121201122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133107065.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 203121201122 its reverse (221102121302), we get a palindrome (424223322424).

The spelling of 203121201122 in words is "two hundred three billion, one hundred twenty-one million, two hundred one thousand, one hundred twenty-two".