1021171012071 has 16 divisors (see below), whose sum is σ = 1647603650304. Its totient is φ = 549201216384.

The previous prime is 1021171012061. The next prime is 1021171012129. The reversal of 1021171012071 is 1702101711201.

1021171012071 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1021171012071 - 2⁵ = 1021171012039 is a prime.

It is a super-2 number, since 2×1021171012071² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021171012061) 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, 1430211145 + ... + 1430211858.

It is an arithmetic number, because the mean of its divisors is an integer number (102975228144).

Almost surely, 2^{1021171012071} is an apocalyptic number.

1021171012071 is a deficient number, since it is larger than the sum of its proper divisors (626432638233).

1021171012071 is a wasteful number, since it uses less digits than its factorization.

1021171012071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2860423030.

The product of its (nonzero) digits is 196, while the sum is 24.

Adding to 1021171012071 its reverse (1702101711201), we get a palindrome (2723272723272).

The spelling of 1021171012071 in words is "one trillion, twenty-one billion, one hundred seventy-one million, twelve thousand, seventy-one".