321111020111122 has 4 divisors (see below), whose sum is σ = 481666530166686. Its totient is φ = 160555510055560.

The previous prime is 321111020111083. The next prime is 321111020111179. The reversal of 321111020111122 is 221111020111123.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 303674223915001 + 17436796196121 = 17426251^2 + 4175739^2 .

It is a super-2 number, since 2×321111020111122² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 321111020111122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80277755027779 + ... + 80277755027782.

Almost surely, 2^{321111020111122} is an apocalyptic number.

321111020111122 is a deficient number, since it is larger than the sum of its proper divisors (160555510055564).

321111020111122 is a wasteful number, since it uses less digits than its factorization.

321111020111122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160555510055563.

The product of its (nonzero) digits is 48, while the sum is 19.

Adding to 321111020111122 its reverse (221111020111123), we get a palindrome (542222040222245).

Subtracting from 321111020111122 its reverse (221111020111123), we obtain a palindrome (99999999999999).

The spelling of 321111020111122 in words is "three hundred twenty-one trillion, one hundred eleven billion, twenty million, one hundred eleven thousand, one hundred twenty-two".