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2212020020220 = 223582944471653
BaseRepresentation
bin100000001100000110101…
…010101110001111111100
321211110121110220211101120
4200030012222232033330
5242220204111121340
64412104333510540
7315545626640553
oct40140652561774
97743543824346
102212020020220
117831266a809a
122b8855042450
13130791c0773a
14790c30c0d9a
153c8168294d0
hex20306aae3fc

2212020020220 has 48 divisors (see below), whose sum is σ = 6201127433760. Its totient is φ = 589160445696.

The previous prime is 2212020020183. The next prime is 2212020020311. The reversal of 2212020020220 is 220200202122.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2212020020220.

It is a congruent number.

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, 22186087 + ... + 22285566.

It is an arithmetic number, because the mean of its divisors is an integer number (129190154870).

Almost surely, 22212020020220 is an apocalyptic number.

2212020020220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212020020220 is an abundant number, since it is smaller than the sum of its proper divisors (3989107413540).

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

2212020020220 is a wasteful number, since it uses less digits than its factorization.

2212020020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44472494 (or 44472492 counting only the distinct ones).

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

Adding to 2212020020220 its reverse (220200202122), we get a palindrome (2432220222342).

The spelling of 2212020020220 in words is "two trillion, two hundred twelve billion, twenty million, twenty thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 829 1658 2487 3316 4145 4974 8290 9948 12435 16580 24870 49740 44471653 88943306 133414959 177886612 222358265 266829918 444716530 533659836 667074795 889433060 1334149590 2668299180 36867000337 73734000674 110601001011 147468001348 184335001685 221202002022 368670003370 442404004044 553005005055 737340006740 1106010010110 2212020020220