121201020122211 has 8 divisors (see below), whose sum is σ = 179557066847760. Its totient is φ = 80800680081456.

The previous prime is 121201020122183. The next prime is 121201020122263. The reversal of 121201020122211 is 112221020102121.

It is not a de Polignac number, because 121201020122211 - 2²³ = 121201011733603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121201020122711) 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, 2244463335570 + ... + 2244463335623.

It is an arithmetic number, because the mean of its divisors is an integer number (22444633355970).

Almost surely, 2^{121201020122211} is an apocalyptic number.

121201020122211 is a deficient number, since it is larger than the sum of its proper divisors (58356046725549).

121201020122211 is an equidigital number, since it uses as much as digits as its factorization.

121201020122211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4488926671202 (or 4488926671196 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 121201020122211 its reverse (112221020102121), we get a palindrome (233422040224332).

The spelling of 121201020122211 in words is "one hundred twenty-one trillion, two hundred one billion, twenty million, one hundred twenty-two thousand, two hundred eleven".