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2212001022020 = 225532086793417
BaseRepresentation
bin100000001100000101100…
…010010000000001000100
321211110120011011121202112
4200030011202100001010
5242220134230201040
64412102414400152
7315545306313326
oct40140542200104
97743504147675
102212001022020
11783116a014a9
122b884a800058
1313078acb52ba
14790c0777616
153c814d25365
hex20305890044

2212001022020 has 24 divisors (see below), whose sum is σ = 4732847472024. Its totient is φ = 868106061056.

The previous prime is 2212001022013. The next prime is 2212001022029. The reversal of 2212001022020 is 202201002122.

It can be written as a sum of positive squares in 4 ways, for example, as 726800580676 + 1485200441344 = 852526^2 + 1218688^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2212001021986 and 2212001022004.

It is not an unprimeable number, because it can be changed into a prime (2212001022029) 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, 1043395649 + ... + 1043397768.

It is an arithmetic number, because the mean of its divisors is an integer number (197201978001).

Almost surely, 22212001022020 is an apocalyptic number.

2212001022020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212001022020 is an abundant number, since it is smaller than the sum of its proper divisors (2520846450004).

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

2212001022020 is a wasteful number, since it uses less digits than its factorization.

2212001022020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2086793479 (or 2086793477 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 2212001022020 its reverse (202201002122), we get a palindrome (2414202024142).

It can be divided in two parts, 221200102 and 2020, that added together give a palindrome (221202122).

The spelling of 2212001022020 in words is "two trillion, two hundred twelve billion, one million, twenty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 53 106 212 265 530 1060 2086793417 4173586834 8347173668 10433967085 20867934170 41735868340 110600051101 221200102202 442400204404 553000255505 1106000511010 2212001022020