121201111100122 has 16 divisors (see below), whose sum is σ = 181843694046720. Its totient is φ = 60586547130208.

The previous prime is 121201111100117. The next prime is 121201111100137. The reversal of 121201111100122 is 221001111102121.

It is a super-2 number, since 2×121201111100122² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121201111100096 and 121201111100105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 388474833 + ... + 388786699.

It is an arithmetic number, because the mean of its divisors is an integer number (11365230877920).

Almost surely, 2^{121201111100122} is an apocalyptic number.

121201111100122 is a deficient number, since it is larger than the sum of its proper divisors (60642582946598).

121201111100122 is a wasteful number, since it uses less digits than its factorization.

121201111100122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356165.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 121201111100122 its reverse (221001111102121), we get a palindrome (342202222202243).

The spelling of 121201111100122 in words is "one hundred twenty-one trillion, two hundred one billion, one hundred eleven million, one hundred thousand, one hundred twenty-two".