1121020213001 has 8 divisors (see below), whose sum is σ = 1227043563144. Its totient is φ = 1017824152320.

The previous prime is 1121020212989. The next prime is 1121020213013. The reversal of 1121020213001 is 1003120201211.

It is an interprime number because it is at equal distance from previous prime (1121020212989) and next prime (1121020213013).

It can be written as a sum of positive squares in 4 ways, for example, as 212908416400 + 908111796601 = 461420^2 + 952949^2 .

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 1121020213001 - 2¹⁴ = 1121020196617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121020213031) 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, 706821536 + ... + 706823121.

It is an arithmetic number, because the mean of its divisors is an integer number (153380445393).

Almost surely, 2^{1121020213001} is an apocalyptic number.

It is an amenable number.

1121020213001 is a deficient number, since it is larger than the sum of its proper divisors (106023350143).

1121020213001 is a wasteful number, since it uses less digits than its factorization.

1121020213001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1413644731.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1121020213001 its reverse (1003120201211), we get a palindrome (2124140414212).

The spelling of 1121020213001 in words is "one trillion, one hundred twenty-one billion, twenty million, two hundred thirteen thousand, one".