21203101233122 has 16 divisors (see below), whose sum is σ = 31856731306560. Its totient is φ = 10584191550192.

The previous prime is 21203101233091. The next prime is 21203101233161. The reversal of 21203101233122 is 22133210130212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65567843 + ... + 65890425.

It is an arithmetic number, because the mean of its divisors is an integer number (1991045706660).

Almost surely, 2^{21203101233122} is an apocalyptic number.

21203101233122 is a deficient number, since it is larger than the sum of its proper divisors (10653630073438).

21203101233122 is a wasteful number, since it uses less digits than its factorization.

21203101233122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376297.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 21203101233122 its reverse (22133210130212), we get a palindrome (43336311363334).

The spelling of 21203101233122 in words is "twenty-one trillion, two hundred three billion, one hundred one million, two hundred thirty-three thousand, one hundred twenty-two".