121020111022222 has 16 divisors (see below), whose sum is σ = 185514041301552. Its totient is φ = 59188995740160.

The previous prime is 121020111022163. The next prime is 121020111022277. The reversal of 121020111022222 is 222220111020121.

It is a super-3 number, since 3×121020111022222³ (a number of 43 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121020111022222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1724586003 + ... + 1724656174.

It is an arithmetic number, because the mean of its divisors is an integer number (11594627581347).

Almost surely, 2^{121020111022222} is an apocalyptic number.

121020111022222 is a deficient number, since it is larger than the sum of its proper divisors (64493930279330).

121020111022222 is a wasteful number, since it uses less digits than its factorization.

121020111022222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3449242563.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 121020111022222 its reverse (222220111020121), we get a palindrome (343240222042343).

The spelling of 121020111022222 in words is "one hundred twenty-one trillion, twenty billion, one hundred eleven million, twenty-two thousand, two hundred twenty-two".