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202010201010101 = 1163606128872331
BaseRepresentation
bin101101111011101000101010…
…010001011010111110110101
3222111020222122020110220200102
4231323220222101122332311
5202434213342424310401
61553350112153323445
760356520046060031
oct5573505221327665
9874228566426612
10202010201010101
1159404055090aa0
121a7a6b1b706585
13889463205c6b3
1437c54bb1dd1c1
151854b378d356b
hexb7ba2a45afb5

202010201010101 has 8 divisors (see below), whose sum is σ = 220375118839008. Its totient is φ = 183645342198000.

The previous prime is 202010201010083. The next prime is 202010201010151. The reversal of 202010201010101 is 101010102010202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-202010201010101 is a prime.

It is a super-2 number, since 2×2020102010101012 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (11).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202010201010151) 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, 7439495 + ... + 21432836.

It is an arithmetic number, because the mean of its divisors is an integer number (27546889854876).

Almost surely, 2202010201010101 is an apocalyptic number.

It is an amenable number.

202010201010101 is a deficient number, since it is larger than the sum of its proper divisors (18364917828907).

202010201010101 is a wasteful number, since it uses less digits than its factorization.

202010201010101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29508403.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 202010201010101 its reverse (101010102010202), we get a palindrome (303020303020303).

The spelling of 202010201010101 in words is "two hundred two trillion, ten billion, two hundred one million, ten thousand, one hundred one".

Divisors: 1 11 636061 6996671 28872331 317595641 18364563728191 202010201010101