121011221222222 has 32 divisors (see below), whose sum is σ = 192161133368064. Its totient is φ = 57060536198400.

The previous prime is 121011221222201. The next prime is 121011221222231. The reversal of 121011221222222 is 222222122110121.

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, 24911333 + ... + 29370000.

It is an arithmetic number, because the mean of its divisors is an integer number (6005035417752).

Almost surely, 2^{121011221222222} is an apocalyptic number.

121011221222222 is a deficient number, since it is larger than the sum of its proper divisors (71149912145842).

121011221222222 is a wasteful number, since it uses less digits than its factorization.

121011221222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54282284.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 121011221222222 its reverse (222222122110121), we get a palindrome (343233343332343).

The spelling of 121011221222222 in words is "one hundred twenty-one trillion, eleven billion, two hundred twenty-one million, two hundred twenty-two thousand, two hundred twenty-two".