121012012121222 has 16 divisors (see below), whose sum is σ = 191374405728000. Its totient is φ = 57230637133320.

The previous prime is 121012012121131. The next prime is 121012012121227. The reversal of 121012012121222 is 222121210210121.

It is a junction number, because it is equal to n+sod(n) for n = 121012012121194 and 121012012121203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121012012121227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2523372722 + ... + 2523420677.

It is an arithmetic number, because the mean of its divisors is an integer number (11960900358000).

Almost surely, 2^{121012012121222} is an apocalyptic number.

121012012121222 is a deficient number, since it is larger than the sum of its proper divisors (70362393606778).

121012012121222 is a wasteful number, since it uses less digits than its factorization.

121012012121222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5046794051.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 121012012121222 its reverse (222121210210121), we get a palindrome (343133222331343).

The spelling of 121012012121222 in words is "one hundred twenty-one trillion, twelve billion, twelve million, one hundred twenty-one thousand, two hundred twenty-two".