101011012121 has 8 divisors (see below), whose sum is σ = 109993843200. Its totient is φ = 92394827280.

The previous prime is 101011012111. The next prime is 101011012147. The reversal of 101011012121 is 121210110101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 101011012121 - 2¹⁰ = 101011011097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101011012111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91660985 + ... + 91662086.

It is an arithmetic number, because the mean of its divisors is an integer number (13749230400).

Almost surely, 2^101011012121 is an apocalyptic number.

It is an amenable number.

101011012121 is a deficient number, since it is larger than the sum of its proper divisors (8982831079).

101011012121 is a wasteful number, since it uses less digits than its factorization.

101011012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183323119.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 101011012121 its reverse (121210110101), we get a palindrome (222221122222).

The spelling of 101011012121 in words is "one hundred one billion, eleven million, twelve thousand, one hundred twenty-one".