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10101112212020 = 22531111971455043
BaseRepresentation
bin1001001011111101100100…
…1101001000101000110100
31022202122201212200211010212
42102333121031020220310
52310444034211241040
633252215322404552
72061531656100404
oct222773115105064
938678655624125
1010101112212020
113244948565505
1211717b6060758
135836b920328b
1426cc79b8a804
15127b46b26d65
hex92fd9348a34

10101112212020 has 48 divisors (see below), whose sum is σ = 21898575164928. Its totient is φ = 3909756055680.

The previous prime is 10101112212019. The next prime is 10101112212127. The reversal of 10101112212020 is 2021221110101.

It is a junction number, because it is equal to n+sod(n) for n = 10101112211986 and 10101112212004.

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, 6214619 + ... + 7669661.

It is an arithmetic number, because the mean of its divisors is an integer number (456220315936).

Almost surely, 210101112212020 is an apocalyptic number.

10101112212020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10101112212020 is an abundant number, since it is smaller than the sum of its proper divisors (11797462952908).

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

10101112212020 is a wasteful number, since it uses less digits than its factorization.

10101112212020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1466280 (or 1466278 counting only the distinct ones).

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

Adding to 10101112212020 its reverse (2021221110101), we get a palindrome (12122333322121).

The spelling of 10101112212020 in words is "ten trillion, one hundred one billion, one hundred twelve million, two hundred twelve thousand, twenty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 11197 22394 44788 55985 111970 223940 347107 694214 1388428 1455043 1735535 2910086 3471070 5820172 6942140 7275215 14550430 29100860 45106333 90212666 180425332 225531665 451063330 902126660 16292116471 32584232942 65168465884 81460582355 162921164710 325842329420 505055610601 1010111221202 2020222442404 2525278053005 5050556106010 10101112212020