971020220101 has 16 divisors (see below), whose sum is σ = 1002612554496. Its totient is φ = 939897271296.

The previous prime is 971020220099. The next prime is 971020220111. The reversal of 971020220101 is 101022020179.

It is a cyclic number.

It is not a de Polignac number, because 971020220101 - 2¹ = 971020220099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (971020220111) 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, 6431065 + ... + 6580321.

It is an arithmetic number, because the mean of its divisors is an integer number (62663284656).

Almost surely, 2^971020220101 is an apocalyptic number.

It is an amenable number.

971020220101 is a deficient number, since it is larger than the sum of its proper divisors (31592334395).

971020220101 is a wasteful number, since it uses less digits than its factorization.

971020220101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150828.

The product of its (nonzero) digits is 504, while the sum is 25.

The spelling of 971020220101 in words is "nine hundred seventy-one billion, twenty million, two hundred twenty thousand, one hundred one".