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20212133001 = 347503521547
BaseRepresentation
bin10010110100101111…
…001010110010001001
31221011121200202000120
4102310233022302021
5312343301224001
613141344053453
71313606203314
oct226457126211
957147622016
1020212133001
118632249755
123b01004289
131ba161c618
14d9a54597b
157d46c0236
hex4b4bcac89

20212133001 has 32 divisors (see below), whose sum is σ = 27681067008. Its totient is φ = 13112561280.

The previous prime is 20212132999. The next prime is 20212133027. The reversal of 20212133001 is 10033121202.

It is not a de Polignac number, because 20212133001 - 21 = 20212132999 is a prime.

It is a super-2 number, since 2×202121330012 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20212133041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36950610 + ... + 36951156.

It is an arithmetic number, because the mean of its divisors is an integer number (865033344).

Almost surely, 220212133001 is an apocalyptic number.

It is an amenable number.

20212133001 is a deficient number, since it is larger than the sum of its proper divisors (7468934007).

20212133001 is a wasteful number, since it uses less digits than its factorization.

20212133001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1621.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20212133001 its reverse (10033121202), we get a palindrome (30245254203).

The spelling of 20212133001 in words is "twenty billion, two hundred twelve million, one hundred thirty-three thousand, one".

Divisors: 1 3 47 141 503 521 547 1509 1563 1641 23641 24487 25709 70923 73461 77127 262063 275141 284987 786189 825423 854961 12316961 12931627 13394389 36950883 38794881 40183167 143348461 430045383 6737377667 20212133001