121231123222222 has 32 divisors (see below), whose sum is σ = 197783141774400. Its totient is φ = 55398598072320.

The previous prime is 121231123222217. The next prime is 121231123222303. The reversal of 121231123222222 is 222222321132121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49106323 + ... + 51515950.

It is an arithmetic number, because the mean of its divisors is an integer number (6180723180450).

Almost surely, 2^{121231123222222} is an apocalyptic number.

121231123222222 is a deficient number, since it is larger than the sum of its proper divisors (76552018552178).

121231123222222 is a wasteful number, since it uses less digits than its factorization.

121231123222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100622748.

The product of its digits is 4608, while the sum is 28.

Adding to 121231123222222 its reverse (222222321132121), we get a palindrome (343453444354343).

The spelling of 121231123222222 in words is "one hundred twenty-one trillion, two hundred thirty-one billion, one hundred twenty-three million, two hundred twenty-two thousand, two hundred twenty-two".