121102012201 has 2 divisors, whose sum is σ = 121102012202. Its totient is φ = 121102012200.

The previous prime is 121102012189. The next prime is 121102012219. The reversal of 121102012201 is 102210201121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88223256576 + 32878755625 = 297024^2 + 181325^2 .

It is a cyclic number.

It is not a de Polignac number, because 121102012201 - 2³⁵ = 86742273833 is a prime.

It is not a weakly prime, because it can be changed into another prime (121102012301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60551006100 + 60551006101.

It is an arithmetic number, because the mean of its divisors is an integer number (60551006101).

Almost surely, 2^121102012201 is an apocalyptic number.

It is an amenable number.

121102012201 is a deficient number, since it is larger than the sum of its proper divisors (1).

121102012201 is an equidigital number, since it uses as much as digits as its factorization.

121102012201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121102012201 its reverse (102210201121), we get a palindrome (223312213322).

It can be divided in two parts, 1211020 and 12201, that added together give a palindrome (1223221).

The spelling of 121102012201 in words is "one hundred twenty-one billion, one hundred two million, twelve thousand, two hundred one".