1021101110121 has 8 divisors (see below), whose sum is σ = 1383787297024. Its totient is φ = 669574498320.

The previous prime is 1021101110119. The next prime is 1021101110131. The reversal of 1021101110121 is 1210111011201.

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

It is not a de Polignac number, because 1021101110121 - 2¹ = 1021101110119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1021101110097 and 1021101110106.

It is not an unprimeable number, because it can be changed into a prime (1021101110101) 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, 2789893561 + ... + 2789893926.

It is an arithmetic number, because the mean of its divisors is an integer number (172973412128).

Almost surely, 2^{1021101110121} is an apocalyptic number.

It is an amenable number.

1021101110121 is a deficient number, since it is larger than the sum of its proper divisors (362686186903).

1021101110121 is an equidigital number, since it uses as much as digits as its factorization.

1021101110121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5579787551.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 1021101110121 its reverse (1210111011201), we get a palindrome (2231212121322).

The spelling of 1021101110121 in words is "one trillion, twenty-one billion, one hundred one million, one hundred ten thousand, one hundred twenty-one".