121131112202122 has 16 divisors (see below), whose sum is σ = 199544846220000. Its totient is φ = 54690068961040.

The previous prime is 121131112202101. The next prime is 121131112202123. The reversal of 121131112202122 is 221202211131121.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 121131112202093 and 121131112202102.

It is not an unprimeable number, because it can be changed into a prime (121131112202123) 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, 18476371372 + ... + 18476377927.

It is an arithmetic number, because the mean of its divisors is an integer number (12471552888750).

Almost surely, 2^{121131112202122} is an apocalyptic number.

121131112202122 is a deficient number, since it is larger than the sum of its proper divisors (78413734017878).

121131112202122 is a wasteful number, since it uses less digits than its factorization.

121131112202122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36952749461.

The product of its (nonzero) digits is 192, while the sum is 22.

Adding to 121131112202122 its reverse (221202211131121), we get a palindrome (342333323333243).

The spelling of 121131112202122 in words is "one hundred twenty-one trillion, one hundred thirty-one billion, one hundred twelve million, two hundred two thousand, one hundred twenty-two".