1021152555001 has 16 divisors (see below), whose sum is σ = 1126550678400. Its totient is φ = 921267986688.

The previous prime is 1021152554987. The next prime is 1021152555013. The reversal of 1021152555001 is 1005552511201.

It is a cyclic number.

It is not a de Polignac number, because 1021152555001 - 2¹⁹ = 1021152030713 is a prime.

It is a super-2 number, since 2×1021152555001² (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 (1021152559001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7382205 + ... + 7519258.

It is an arithmetic number, because the mean of its divisors is an integer number (70409417400).

Almost surely, 2^{1021152555001} is an apocalyptic number.

It is an amenable number.

1021152555001 is a deficient number, since it is larger than the sum of its proper divisors (105398123399).

1021152555001 is a wasteful number, since it uses less digits than its factorization.

1021152555001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14901648.

The product of its (nonzero) digits is 2500, while the sum is 28.

The spelling of 1021152555001 in words is "one trillion, twenty-one billion, one hundred fifty-two million, five hundred fifty-five thousand, one".