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2220112323220 = 2251110091419651
BaseRepresentation
bin100000010011101001000…
…000011010001010010100
321212020111110000102012111
4200103221000122022110
5242333242223320340
64415523332000404
7316253311244641
oct40235100321224
97766443012174
102220112323220
117865a958a110
122ba333160104
131314815c7acc
147964db34dc8
153cb3bea8aea
hex204e901a294

2220112323220 has 24 divisors (see below), whose sum is σ = 5086075504608. Its totient is φ = 807313572000.

The previous prime is 2220112323217. The next prime is 2220112323229. The reversal of 2220112323220 is 223232110222.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 2220112323191 and 2220112323200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220112323229) 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, 5045709606 + ... + 5045710045.

It is an arithmetic number, because the mean of its divisors is an integer number (211919812692).

Almost surely, 22220112323220 is an apocalyptic number.

2220112323220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220112323220 is an abundant number, since it is smaller than the sum of its proper divisors (2865963181388).

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

2220112323220 is a wasteful number, since it uses less digits than its factorization.

2220112323220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10091419671 (or 10091419669 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 2220112323220 its reverse (223232110222), we get a palindrome (2443344433442).

The spelling of 2220112323220 in words is "two trillion, two hundred twenty billion, one hundred twelve million, three hundred twenty-three thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 10091419651 20182839302 40365678604 50457098255 100914196510 111005616161 201828393020 222011232322 444022464644 555028080805 1110056161610 2220112323220