121210210210133 has 16 divisors (see below), whose sum is σ = 138017322164736. Its totient is φ = 105370466707440.

The previous prime is 121210210210127. The next prime is 121210210210139. The reversal of 121210210210133 is 331012012012121.

It is an interprime number because it is at equal distance from previous prime (121210210210127) and next prime (121210210210139).

It is not a de Polignac number, because 121210210210133 - 2¹⁸ = 121210209947989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121210210210139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66637391 + ... + 68432172.

It is an arithmetic number, because the mean of its divisors is an integer number (8626082635296).

Almost surely, 2^{121210210210133} is an apocalyptic number.

It is an amenable number.

121210210210133 is a deficient number, since it is larger than the sum of its proper divisors (16807111954603).

121210210210133 is a wasteful number, since it uses less digits than its factorization.

121210210210133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135073144.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 121210210210133 its reverse (331012012012121), we get a palindrome (452222222222254).

The spelling of 121210210210133 in words is "one hundred twenty-one trillion, two hundred ten billion, two hundred ten million, two hundred ten thousand, one hundred thirty-three".