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1101022222220 = 22564818494231
BaseRepresentation
bin10000000001011010000…
…010011101011110001100
310220020221010120000222222
4100001122002131132030
5121014343142102340
62201445211154512
7142355233321154
oct20013202353614
93806833500888
101101022222220
11394a39382748
12159476145a38
137ca977c61ab
143b40b15b764
151d9905c18b5
hex1005a09d78c

1101022222220 has 24 divisors (see below), whose sum is σ = 2312503696608. Its totient is φ = 440340883200.

The previous prime is 1101022222219. The next prime is 1101022222271. The reversal of 1101022222220 is 222222201011.

It is a happy number.

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, 4117496 + ... + 4376735.

It is an arithmetic number, because the mean of its divisors is an integer number (96354320692).

Almost surely, 21101022222220 is an apocalyptic number.

1101022222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1101022222220 is an abundant number, since it is smaller than the sum of its proper divisors (1211481474388).

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

1101022222220 is a wasteful number, since it uses less digits than its factorization.

1101022222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8500721 (or 8500719 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1101022222220 its reverse (222222201011), we get a palindrome (1323244423231).

The spelling of 1101022222220 in words is "one trillion, one hundred one billion, twenty-two million, two hundred twenty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 6481 12962 25924 32405 64810 129620 8494231 16988462 33976924 42471155 84942310 169884620 55051111111 110102222222 220204444444 275255555555 550511111110 1101022222220