1021121310441 has 8 divisors (see below), whose sum is σ = 1405414276864. Its totient is φ = 658787942160.

The previous prime is 1021121310413. The next prime is 1021121310467. The reversal of 1021121310441 is 1440131211201.

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

It is a de Polignac number, because none of the positive numbers 2^k-1021121310441 is a prime.

It is a super-2 number, since 2×1021121310441² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021121312441) 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, 5489899426 + ... + 5489899611.

It is an arithmetic number, because the mean of its divisors is an integer number (175676784608).

Almost surely, 2^{1021121310441} is an apocalyptic number.

It is an amenable number.

1021121310441 is a deficient number, since it is larger than the sum of its proper divisors (384292966423).

1021121310441 is a wasteful number, since it uses less digits than its factorization.

1021121310441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10979799071.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 1021121310441 its reverse (1440131211201), we get a palindrome (2461252521642).

The spelling of 1021121310441 in words is "one trillion, twenty-one billion, one hundred twenty-one million, three hundred ten thousand, four hundred forty-one".