122001011010221 has 32 divisors (see below), whose sum is σ = 143589052992000. Its totient is φ = 103606750598400.

The previous prime is 122001011010211. The next prime is 122001011010223. The reversal of 122001011010221 is 122010110100221.

It is a de Polignac number, because none of the positive numbers 2^k-122001011010221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122001011010196 and 122001011010205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122001011010223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 694674821 + ... + 694850421.

It is an arithmetic number, because the mean of its divisors is an integer number (4487157906000).

Almost surely, 2^{122001011010221} is an apocalyptic number.

It is an amenable number.

122001011010221 is a deficient number, since it is larger than the sum of its proper divisors (21588041981779).

122001011010221 is a wasteful number, since it uses less digits than its factorization.

122001011010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194314 (or 194300 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 122001011010221 its reverse (122010110100221), we get a palindrome (244011121110442).

The spelling of 122001011010221 in words is "one hundred twenty-two trillion, one billion, eleven million, ten thousand, two hundred twenty-one".