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1110102001220 = 22555505100061
BaseRepresentation
bin10000001001110111001…
…111000100011001000100
310221010100220202121020002
4100021313033010121010
5121141442103014340
62205550202300432
7143126235215102
oct20116717043104
93833326677202
101110102001220
11398878704033
1215b18aab7718
13808b395a0a4
143ba2cdbcc72
151dd227ab715
hex102773c4644

1110102001220 has 12 divisors (see below), whose sum is σ = 2331214202604. Its totient is φ = 444040800480.

The previous prime is 1110102001219. The next prime is 1110102001259. The reversal of 1110102001220 is 221002010111.

It can be written as a sum of positive squares in 2 ways, for example, as 587592770116 + 522509231104 = 766546^2 + 722848^2 .

It is a super-2 number, since 2×11101020012202 (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27752550011 + ... + 27752550050.

It is an arithmetic number, because the mean of its divisors is an integer number (194267850217).

Almost surely, 21110102001220 is an apocalyptic number.

1110102001220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1110102001220 is an abundant number, since it is smaller than the sum of its proper divisors (1221112201384).

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

1110102001220 is a wasteful number, since it uses less digits than its factorization.

1110102001220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55505100070 (or 55505100068 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1110102001220 its reverse (221002010111), we get a palindrome (1331104011331).

The spelling of 1110102001220 in words is "one trillion, one hundred ten billion, one hundred two million, one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 55505100061 111010200122 222020400244 277525500305 555051000610 1110102001220