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2220211010020 = 225111010550501
BaseRepresentation
bin100000010011101110111…
…000110111100111100100
321212020202022201020001011
4200103232320313213210
5242333443004310040
64415541215112004
7316255620130363
oct40235670674744
97766668636034
102220211010020
1178664a263a53
122ba360212604
13131498b9b973
147965cca37da
153cb4599e3ea
hex204eee379e4

2220211010020 has 12 divisors (see below), whose sum is σ = 4662443121084. Its totient is φ = 888084404000.

The previous prime is 2220211010011. The next prime is 2220211010047. The reversal of 2220211010020 is 200101120222.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 810676941376 + 1409534068644 = 900376^2 + 1187238^2 .

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, 55505275231 + ... + 55505275270.

It is an arithmetic number, because the mean of its divisors is an integer number (388536926757).

Almost surely, 22220211010020 is an apocalyptic number.

2220211010020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220211010020 is an abundant number, since it is smaller than the sum of its proper divisors (2442232111064).

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

2220211010020 is a wasteful number, since it uses less digits than its factorization.

2220211010020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111010550510 (or 111010550508 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2220211010020 its reverse (200101120222), we get a palindrome (2420312130242).

The spelling of 2220211010020 in words is "two trillion, two hundred twenty billion, two hundred eleven million, ten thousand, twenty".

Divisors: 1 2 4 5 10 20 111010550501 222021101002 444042202004 555052752505 1110105505010 2220211010020