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210220202102001 = 3713770037370337
BaseRepresentation
bin101111110011000110110100…
…011110001000110011110001
31000120022212002022222002222020
4233303012310132020303301
5210023221433214231001
62023033454433502053
762164623402653520
oct5763066436106361
91016285068862866
10210220202102001
1160a89983725833
121b6b2100411929
13903b8abc53180
1439ca9d7cc84b7
15194849ace4736
hexbf31b4788cf1

210220202102001 has 16 divisors (see below), whose sum is σ = 344976741911424. Its totient is φ = 110885381328384.

The previous prime is 210220202101961. The next prime is 210220202102023. The reversal of 210220202102001 is 100201202022012.

It is not a de Polignac number, because 210220202102001 - 213 = 210220202093809 is a prime.

It is a super-2 number, since 2×2102202021020012 (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (210220202102501) 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, 385018684896 + ... + 385018685441.

It is an arithmetic number, because the mean of its divisors is an integer number (21561046369464).

Almost surely, 2210220202102001 is an apocalyptic number.

210220202102001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

210220202102001 is a deficient number, since it is larger than the sum of its proper divisors (134756539809423).

210220202102001 is a wasteful number, since it uses less digits than its factorization.

210220202102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770037370360.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 210220202102001 its reverse (100201202022012), we get a palindrome (310421404124013).

The spelling of 210220202102001 in words is "two hundred ten trillion, two hundred twenty billion, two hundred two million, one hundred two thousand, one".

Divisors: 1 3 7 13 21 39 91 273 770037370337 2310112111011 5390261592359 10010485814381 16170784777077 30031457443143 70073400700667 210220202102001