121111010021222 has 16 divisors (see below), whose sum is σ = 196086513527520. Its totient is φ = 55770060330432.

The previous prime is 121111010021219. The next prime is 121111010021227. The reversal of 121111010021222 is 222120010111121.

It is a self number, because there is not a number n which added to its sum of digits gives 121111010021222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121111010021227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5305359623 + ... + 5305382450.

It is an arithmetic number, because the mean of its divisors is an integer number (12255407095470).

Almost surely, 2^{121111010021222} is an apocalyptic number.

121111010021222 is a deficient number, since it is larger than the sum of its proper divisors (74975503506298).

121111010021222 is a wasteful number, since it uses less digits than its factorization.

121111010021222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10610742527.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 121111010021222 its reverse (222120010111121), we get a palindrome (343231020132343).

The spelling of 121111010021222 in words is "one hundred twenty-one trillion, one hundred eleven billion, ten million, twenty-one thousand, two hundred twenty-two".