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10212020212220 = 2253891312598999
BaseRepresentation
bin1001010010011010101111…
…0101100101000111111100
31100011021000020122222121222
42110212223311211013330
52314303204133242340
633415200510012512
72102536244406641
oct224465365450774
940137006588558
1010212020212220
113287991201602
12118b1a8aa7138
13590cb28680b8
1427439b7addc8
1512a9887cb8b5
hex949abd651fc

10212020212220 has 24 divisors (see below), whose sum is σ = 21500371620000. Its totient is φ = 4074307289792.

The previous prime is 10212020212153. The next prime is 10212020212243. The reversal of 10212020212220 is 2221202021201.

It is a happy number.

It is a congruent 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, 656291720 + ... + 656307279.

It is an arithmetic number, because the mean of its divisors is an integer number (895848817500).

Almost surely, 210212020212220 is an apocalyptic number.

10212020212220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10212020212220 is an abundant number, since it is smaller than the sum of its proper divisors (11288351407780).

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

10212020212220 is a wasteful number, since it uses less digits than its factorization.

10212020212220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312599397 (or 1312599395 counting only the distinct ones).

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

Adding to 10212020212220 its reverse (2221202021201), we get a palindrome (12433222233421).

The spelling of 10212020212220 in words is "ten trillion, two hundred twelve billion, twenty million, two hundred twelve thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 389 778 1556 1945 3890 7780 1312598999 2625197998 5250395996 6562994995 13125989990 26251979980 510601010611 1021202021222 2042404042444 2553005053055 5106010106110 10212020212220