121102122221211 has 64 divisors (see below), whose sum is σ = 171945037491840. Its totient is φ = 75713262243840.

The previous prime is 121102122221209. The next prime is 121102122221231. The reversal of 121102122221211 is 112122221201121.

It is not a de Polignac number, because 121102122221211 - 2¹ = 121102122221209 is a prime.

It is a super-2 number, since 2×121102122221211² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121102122221231) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 290111601 + ... + 290528733.

It is an arithmetic number, because the mean of its divisors is an integer number (2686641210810).

Almost surely, 2^{121102122221211} is an apocalyptic number.

121102122221211 is a deficient number, since it is larger than the sum of its proper divisors (50842915270629).

121102122221211 is a wasteful number, since it uses less digits than its factorization.

121102122221211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418096.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 121102122221211 its reverse (112122221201121), we get a palindrome (233224343422332).

The spelling of 121102122221211 in words is "one hundred twenty-one trillion, one hundred two billion, one hundred twenty-two million, two hundred twenty-one thousand, two hundred eleven".