21020100010097 has 8 divisors (see below), whose sum is σ = 22143095107200. Its totient is φ = 19898772317424.

The previous prime is 21020100009989. The next prime is 21020100010109. The reversal of 21020100010097 is 79001000102012.

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 21020100010097 - 2¹⁶ = 21020099944561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21020100010397) 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, 416825222 + ... + 416875647.

It is an arithmetic number, because the mean of its divisors is an integer number (2767886888400).

Almost surely, 2^{21020100010097} is an apocalyptic number.

It is an amenable number.

21020100010097 is a deficient number, since it is larger than the sum of its proper divisors (1122995097103).

21020100010097 is a wasteful number, since it uses less digits than its factorization.

21020100010097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833702215.

The product of its (nonzero) digits is 252, while the sum is 23.

The spelling of 21020100010097 in words is "twenty-one trillion, twenty billion, one hundred million, ten thousand, ninety-seven".