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2212220200020 = 223536870336667
BaseRepresentation
bin100000001100010010100…
…110010110010001010100
321211111010102121000110020
4200030102212112101110
5242221111332400040
64412140244225140
7315553610304255
oct40142246262124
97744112530406
102212220200020
117832196a3146
122b88b009b1b0
131307c452581c
147910190cb2c
153c8291bbcd0
hex20312996454

2212220200020 has 24 divisors (see below), whose sum is σ = 6194216560224. Its totient is φ = 589925386656.

The previous prime is 2212220200019. The next prime is 2212220200027. The reversal of 2212220200020 is 200020222122.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212220200027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18435168274 + ... + 18435168393.

It is an arithmetic number, because the mean of its divisors is an integer number (258092356676).

Almost surely, 22212220200020 is an apocalyptic number.

2212220200020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212220200020 is an abundant number, since it is smaller than the sum of its proper divisors (3981996360204).

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

2212220200020 is a wasteful number, since it uses less digits than its factorization.

2212220200020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36870336679 (or 36870336677 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 2212220200020 its reverse (200020222122), we get a palindrome (2412240422142).

The spelling of 2212220200020 in words is "two trillion, two hundred twelve billion, two hundred twenty million, two hundred thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 36870336667 73740673334 110611010001 147481346668 184351683335 221222020002 368703366670 442444040004 553055050005 737406733340 1106110100010 2212220200020