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2020221212084 = 22701720478321
BaseRepresentation
bin11101011001011110100…
…100010101010110110100
321011010112200121212010222
4131121132210111112310
5231044403112241314
64144024331433512
7265645651654115
oct35313644252664
97133480555128
102020221212084
11709853230809
12287647bb5898
13118676a1231a
146daca2ba20c
153783d392c8e
hex1d65e9155b4

2020221212084 has 12 divisors (see below), whose sum is σ = 3540430474308. Its totient is φ = 1008669648000.

The previous prime is 2020221212083. The next prime is 2020221212111. The reversal of 2020221212084 is 4802121220202.

It can be written as a sum of positive squares in 2 ways, for example, as 1433431507600 + 586789704484 = 1197260^2 + 766022^2 .

It is a super-2 number, since 2×20202212120842 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020221212081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360236357 + ... + 360241964.

It is an arithmetic number, because the mean of its divisors is an integer number (295035872859).

Almost surely, 22020221212084 is an apocalyptic number.

It is an amenable number.

2020221212084 is a deficient number, since it is larger than the sum of its proper divisors (1520209262224).

2020221212084 is a wasteful number, since it uses less digits than its factorization.

2020221212084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720479026 (or 720479024 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 26.

Adding to 2020221212084 its reverse (4802121220202), we get a palindrome (6822342432286).

The spelling of 2020221212084 in words is "two trillion, twenty billion, two hundred twenty-one million, two hundred twelve thousand, eighty-four".

Divisors: 1 2 4 701 1402 2804 720478321 1440956642 2881913284 505055303021 1010110606042 2020221212084