1212102012101 has 2 divisors, whose sum is σ = 1212102012102. Its totient is φ = 1212102012100.

The previous prime is 1212102012083. The next prime is 1212102012113. The reversal of 1212102012101 is 1012102012121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1104748144900 + 107353867201 = 1051070^2 + 327649^2 .

It is a cyclic number.

It is not a de Polignac number, because 1212102012101 - 2²⁶ = 1212034903237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1212102012131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606051006050 + 606051006051.

It is an arithmetic number, because the mean of its divisors is an integer number (606051006051).

Almost surely, 2^{1212102012101} is an apocalyptic number.

It is an amenable number.

1212102012101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212102012101 is an equidigital number, since it uses as much as digits as its factorization.

1212102012101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1212102012101 its reverse (1012102012121), we get a palindrome (2224204024222).

It can be divided in two parts, 12121020 and 12101, that added together give a palindrome (12133121).

The spelling of 1212102012101 in words is "one trillion, two hundred twelve billion, one hundred two million, twelve thousand, one hundred one".