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10001201010020 = 22511311466451761
BaseRepresentation
bin1001000110001001011000…
…0010001001010101100100
31022102002211220010212211222
42101202112002021111210
52302324424424310040
633134253250515512
72051364040640243
oct221422602112544
938362756125758
1010001201010020
11320653826a690
121156371b95b98
13577155c1463c
142680bc84295a
1512524a5ccbb5
hex91896089564

10001201010020 has 48 divisors (see below), whose sum is σ = 23650934017536. Its totient is φ = 3519484224000.

The previous prime is 10001201010011. The next prime is 10001201010041. The reversal of 10001201010020 is 2001010210001.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 733219061 + ... + 733232700.

It is an arithmetic number, because the mean of its divisors is an integer number (492727792032).

Almost surely, 210001201010020 is an apocalyptic number.

10001201010020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10001201010020 is an abundant number, since it is smaller than the sum of its proper divisors (13649733007516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10001201010020 is a wasteful number, since it uses less digits than its factorization.

10001201010020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1466451812 (or 1466451810 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 10001201010020 its reverse (2001010210001), we get a palindrome (12002211220021).

The spelling of 10001201010020 in words is "ten trillion, one billion, two hundred one million, ten thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 31 44 55 62 110 124 155 220 310 341 620 682 1364 1705 3410 6820 1466451761 2932903522 5865807044 7332258805 14664517610 16130969371 29329035220 32261938742 45460004591 64523877484 80654846855 90920009182 161309693710 181840018364 227300022955 322619387420 454600045910 500060050501 909200091820 1000120101002 2000240202004 2500300252505 5000600505010 10001201010020