101010121121211 has 4 divisors (see below), whose sum is σ = 134680161494952. Its totient is φ = 67340080747472.

The previous prime is 101010121121209. The next prime is 101010121121321. The reversal of 101010121121211 is 112121121010101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 101010121121211 - 2¹ = 101010121121209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101010121121911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16835020186866 + ... + 16835020186871.

It is an arithmetic number, because the mean of its divisors is an integer number (33670040373738).

Almost surely, 2^{101010121121211} is an apocalyptic number.

101010121121211 is a deficient number, since it is larger than the sum of its proper divisors (33670040373741).

101010121121211 is an equidigital number, since it uses as much as digits as its factorization.

101010121121211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33670040373740.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 101010121121211 its reverse (112121121010101), we get a palindrome (213131242131312).

The spelling of 101010121121211 in words is "one hundred one trillion, ten billion, one hundred twenty-one million, one hundred twenty-one thousand, two hundred eleven".