1211210102133 has 6 divisors (see below), whose sum is σ = 1749525703094. Its totient is φ = 807473401416.

The previous prime is 1211210102107. The next prime is 1211210102171. The reversal of 1211210102133 is 3312010121121.

It can be written as a sum of positive squares in only one way, i.e., 1207357044804 + 3853057329 = 1098798^2 + 62073^2 .

It is not a de Polignac number, because 1211210102133 - 2⁸ = 1211210101877 is a prime.

It is a super-2 number, since 2×1211210102133² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211210106133) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67289450110 + ... + 67289450127.

Almost surely, 2^{1211210102133} is an apocalyptic number.

It is an amenable number.

1211210102133 is a deficient number, since it is larger than the sum of its proper divisors (538315600961).

1211210102133 is a wasteful number, since it uses less digits than its factorization.

1211210102133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134578900243 (or 134578900240 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1211210102133 its reverse (3312010121121), we get a palindrome (4523220223254).

The spelling of 1211210102133 in words is "one trillion, two hundred eleven billion, two hundred ten million, one hundred two thousand, one hundred thirty-three".