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22212022302020 = 2253853288243217
BaseRepresentation
bin1010000110011101000111…
…01100101111010101000100
32220122110010000200021002102
411003032203230233111010
510402410210202131040
6115124021232531232
74451523422245115
oct503164354572504
986573100607072
1022212022302020
11709407a583511
1225a8a093b0b18
13c5177a809c45
1456b0d377420c
15287bbb9b1515
hex1433a3b2f544

22212022302020 has 24 divisors (see below), whose sum is σ = 46657353211224. Its totient is φ = 8882502944256.

The previous prime is 22212022301939. The next prime is 22212022302053. The reversal of 22212022302020 is 2020322021222.

It can be written as a sum of positive squares in 4 ways, for example, as 11620694659396 + 10591327642624 = 3408914^2 + 3254432^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 22212022301983 and 22212022302001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144044549 + ... + 144198668.

It is an arithmetic number, because the mean of its divisors is an integer number (1944056383801).

Almost surely, 222212022302020 is an apocalyptic number.

22212022302020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22212022302020 is an abundant number, since it is smaller than the sum of its proper divisors (24445330909204).

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

22212022302020 is a wasteful number, since it uses less digits than its factorization.

22212022302020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288247079 (or 288247077 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 22212022302020 its reverse (2020322021222), we get a palindrome (24232344323242).

The spelling of 22212022302020 in words is "twenty-two trillion, two hundred twelve billion, twenty-two million, three hundred two thousand, twenty".

Divisors: 1 2 4 5 10 20 3853 7706 15412 19265 38530 77060 288243217 576486434 1152972868 1441216085 2882432170 5764864340 1110601115101 2221202230202 4442404460404 5553005575505 11106011151010 22212022302020