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10022012021 = 743239913879
BaseRepresentation
bin10010101010101101…
…11100010001110101
3221212110011221221102
421111112330101311
5131011113341041
64334250255445
7503232460640
oct112526742165
927773157842
1010022012021
114283189a6a
121b38427585
13c39426638
146b1052a57
153d9caa09b
hex2555bc475

10022012021 has 16 divisors (see below), whose sum is σ = 11725824000. Its totient is φ = 8386419888.

The previous prime is 10022012017. The next prime is 10022012069. The reversal of 10022012021 is 12021022001.

It is a happy number.

It is not a de Polignac number, because 10022012021 - 22 = 10022012017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10022011993 and 10022012011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10022018021) 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, 715160 + ... + 729038.

It is an arithmetic number, because the mean of its divisors is an integer number (732864000).

Almost surely, 210022012021 is an apocalyptic number.

It is an amenable number.

10022012021 is a deficient number, since it is larger than the sum of its proper divisors (1703811979).

10022012021 is a wasteful number, since it uses less digits than its factorization.

10022012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16328.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 10022012021 its reverse (12021022001), we get a palindrome (22043034022).

The spelling of 10022012021 in words is "ten billion, twenty-two million, twelve thousand, twenty-one".

Divisors: 1 7 43 301 2399 13879 16793 97153 103157 596797 722099 4177579 33295721 233070047 1431716003 10022012021