1212202110101 has 2 divisors, whose sum is σ = 1212202110102. Its totient is φ = 1212202110100.

The previous prime is 1212202110073. The next prime is 1212202110209. The reversal of 1212202110101 is 1010112022121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 955406547601 + 256795562500 = 977449^2 + 506750^2 .

It is a cyclic number.

It is not a de Polignac number, because 1212202110101 - 2¹⁴ = 1212202093717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1212202112101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606101055050 + 606101055051.

It is an arithmetic number, because the mean of its divisors is an integer number (606101055051).

Almost surely, 2^{1212202110101} is an apocalyptic number.

It is an amenable number.

1212202110101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212202110101 is an equidigital number, since it uses as much as digits as its factorization.

1212202110101 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 14.

Adding to 1212202110101 its reverse (1010112022121), we get a palindrome (2222314132222).

The spelling of 1212202110101 in words is "one trillion, two hundred twelve billion, two hundred two million, one hundred ten thousand, one hundred one".