121223101201 has 2 divisors, whose sum is σ = 121223101202. Its totient is φ = 121223101200.

The previous prime is 121223101177. The next prime is 121223101249. The reversal of 121223101201 is 102101322121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120714553600 + 508547601 = 347440^2 + 22551^2 .

It is a cyclic number.

It is not a de Polignac number, because 121223101201 - 2⁹ = 121223100689 is a prime.

It is not a weakly prime, because it can be changed into another prime (121223101261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60611550600 + 60611550601.

It is an arithmetic number, because the mean of its divisors is an integer number (60611550601).

Almost surely, 2^121223101201 is an apocalyptic number.

It is an amenable number.

121223101201 is a deficient number, since it is larger than the sum of its proper divisors (1).

121223101201 is an equidigital number, since it uses as much as digits as its factorization.

121223101201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 121223101201 its reverse (102101322121), we get a palindrome (223324423322).

It can be divided in two parts, 121 and 223101201, that added together give a palindrome (223101322).

The spelling of 121223101201 in words is "one hundred twenty-one billion, two hundred twenty-three million, one hundred one thousand, two hundred one".