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202122011001 = 31931229499507
BaseRepresentation
bin1011110000111101101…
…0010010000101111001
3201022201020020000100110
42330033122102011321
511302421213323001
6232504212054533
720413525514001
oct2741732220571
9638636200313
10202122011001
11787a06734a9
123320a304449
13160a1b458a1
149ad5c5b001
1553ce8d83d6
hex2f0f692179

202122011001 has 32 divisors (see below), whose sum is σ = 294110310400. Its totient is φ = 122998357440.

The previous prime is 202122010973. The next prime is 202122011017. The reversal of 202122011001 is 100110221202.

It is not a de Polignac number, because 202122011001 - 27 = 202122010873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202122011041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 154890 + ... + 654396.

It is an arithmetic number, because the mean of its divisors is an integer number (9190947200).

Almost surely, 2202122011001 is an apocalyptic number.

It is an amenable number.

202122011001 is a deficient number, since it is larger than the sum of its proper divisors (91988299399).

202122011001 is a wasteful number, since it uses less digits than its factorization.

202122011001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499789.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 202122011001 its reverse (100110221202), we get a palindrome (302232232203).

The spelling of 202122011001 in words is "two hundred two billion, one hundred twenty-two million, eleven thousand, one".

Divisors: 1 3 19 31 57 93 229 589 687 1767 4351 7099 13053 21297 134881 404643 499507 1498521 9490633 15484717 28471899 46454151 114387103 294209623 343161309 882628869 2173354957 3546000193 6520064871 10638000579 67374003667 202122011001