1011010012121 has 8 divisors (see below), whose sum is σ = 1034536013280. Its totient is φ = 987484653792.

The previous prime is 1011010012097. The next prime is 1011010012147. The reversal of 1011010012121 is 1212100101101.

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 1011010012121 - 2¹⁸ = 1011009749977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1011010012321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4739285 + ... + 4948013.

It is an arithmetic number, because the mean of its divisors is an integer number (129317001660).

Almost surely, 2^{1011010012121} is an apocalyptic number.

It is an amenable number.

1011010012121 is a deficient number, since it is larger than the sum of its proper divisors (23526001159).

1011010012121 is a wasteful number, since it uses less digits than its factorization.

1011010012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321415.

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

Adding to 1011010012121 its reverse (1212100101101), we get a palindrome (2223110113222).

The spelling of 1011010012121 in words is "one trillion, eleven billion, ten million, twelve thousand, one hundred twenty-one".