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1111120210220 = 22555556010511
BaseRepresentation
bin10000001010110011111…
…011001110100100101100
310221012222212200222101112
4100022303323032210230
5121201033233211340
62210235214131152
7143163410645336
oct20126373164454
93835885628345
101111120210220
11399250434579
1215b413ab0ab8
1380a168a1417
143bac830a456
151dd81d88065
hex102b3ece92c

1111120210220 has 12 divisors (see below), whose sum is σ = 2333352441504. Its totient is φ = 444448084080.

The previous prime is 1111120210219. The next prime is 1111120210223. The reversal of 1111120210220 is 220120211111.

It is a junction number, because it is equal to n+sod(n) for n = 1111120210195 and 1111120210204.

It is not an unprimeable number, because it can be changed into a prime (1111120210223) 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, 27778005236 + ... + 27778005275.

It is an arithmetic number, because the mean of its divisors is an integer number (194446036792).

Almost surely, 21111120210220 is an apocalyptic number.

1111120210220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111120210220 is an abundant number, since it is smaller than the sum of its proper divisors (1222232231284).

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

1111120210220 is a wasteful number, since it uses less digits than its factorization.

1111120210220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55556010520 (or 55556010518 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1111120210220 its reverse (220120211111), we get a palindrome (1331240421331).

The spelling of 1111120210220 in words is "one trillion, one hundred eleven billion, one hundred twenty million, two hundred ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 55556010511 111112021022 222224042044 277780052555 555560105110 1111120210220