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2212122201020 = 225110606110051
BaseRepresentation
bin100000001100001100110…
…000100000101110111100
321211110212121012011002122
4200030030300200232330
5242220411240413040
64412122423542112
7315551310315014
oct40141460405674
97743777164078
102212122201020
11783179349036
122b88832ba938
131307aa132a54
14790d28bcc44
153c8207b01b5
hex2030cc20bbc

2212122201020 has 12 divisors (see below), whose sum is σ = 4645456622184. Its totient is φ = 884848880400.

The previous prime is 2212122200983. The next prime is 2212122201031. The reversal of 2212122201020 is 201022212122.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2212122201020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55303055006 + ... + 55303055045.

It is an arithmetic number, because the mean of its divisors is an integer number (387121385182).

Almost surely, 22212122201020 is an apocalyptic number.

2212122201020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212122201020 is an abundant number, since it is smaller than the sum of its proper divisors (2433334421164).

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

2212122201020 is a wasteful number, since it uses less digits than its factorization.

2212122201020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110606110060 (or 110606110058 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2212122201020 its reverse (201022212122), we get a palindrome (2413144413142).

It can be divided in two parts, 2212122 and 201020, that added together give a palindrome (2413142).

The spelling of 2212122201020 in words is "two trillion, two hundred twelve billion, one hundred twenty-two million, two hundred one thousand, twenty".

Divisors: 1 2 4 5 10 20 110606110051 221212220102 442424440204 553030550255 1106061100510 2212122201020