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120221001012 = 22372362226191
BaseRepresentation
bin110111111110110111…
…0101110010100110100
3102111022102000121220010
41233331232232110310
53432203034013022
6131121225140220
711454121435140
oct1577556562464
9374272017803
10120221001012
1146a92691492
121b37192a670
13b44bc155b8
145b66834220
1531d95ac50c
hex1bfdbae534

120221001012 has 48 divisors (see below), whose sum is σ = 334528008192. Its totient is φ = 32855428320.

The previous prime is 120221001001. The next prime is 120221001023. The reversal of 120221001012 is 210100122021.

It is an interprime number because it is at equal distance from previous prime (120221001001) and next prime (120221001023).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31111164 + ... + 31115027.

It is an arithmetic number, because the mean of its divisors is an integer number (6969333504).

Almost surely, 2120221001012 is an apocalyptic number.

120221001012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

120221001012 is an abundant number, since it is smaller than the sum of its proper divisors (214307007180).

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

120221001012 is a wasteful number, since it uses less digits than its factorization.

120221001012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62226228 (or 62226226 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 120221001012 its reverse (210100122021), we get a palindrome (330321123033).

The spelling of 120221001012 in words is "one hundred twenty billion, two hundred twenty-one million, one thousand, twelve".

Divisors: 1 2 3 4 6 7 12 14 21 23 28 42 46 69 84 92 138 161 276 322 483 644 966 1932 62226191 124452382 186678573 248904764 373357146 435583337 746714292 871166674 1306750011 1431202393 1742333348 2613500022 2862404786 4293607179 5227000044 5724809572 8587214358 10018416751 17174428716 20036833502 30055250253 40073667004 60110500506 120221001012