211121220102122 has 16 divisors (see below), whose sum is σ = 348891593259744. Its totient is φ = 95014050450000.

The previous prime is 211121220102103. The next prime is 211121220102127. The reversal of 211121220102122 is 221201022121112.

It is a junction number, because it is equal to n+sod(n) for n = 211121220102094 and 211121220102103.

It is not an unprimeable number, because it can be changed into a prime (211121220102127) 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, 47507023004 + ... + 47507027447.

It is an arithmetic number, because the mean of its divisors is an integer number (21805724578734).

Almost surely, 2^{211121220102122} is an apocalyptic number.

211121220102122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

211121220102122 is a deficient number, since it is larger than the sum of its proper divisors (137770373157622).

211121220102122 is a wasteful number, since it uses less digits than its factorization.

211121220102122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95014050565.

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

Adding to 211121220102122 its reverse (221201022121112), we get a palindrome (432322242223234).

The spelling of 211121220102122 in words is "two hundred eleven trillion, one hundred twenty-one billion, two hundred twenty million, one hundred two thousand, one hundred twenty-two".