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10201222110020 = 225510061105501
BaseRepresentation
bin1001010001110010100000…
…1110000101101101000100
31100010020010201010120002212
42110130220032011231010
52314114100330010040
633410213213122552
72102004536144264
oct224345016055504
940106121116085
1010201222110020
11328334aa325a7
121189094789458
1358cc81710806
14273a556577a4
1512a55581dd65
hex94728385b44

10201222110020 has 12 divisors (see below), whose sum is σ = 21422566431084. Its totient is φ = 4080488844000.

The previous prime is 10201222110011. The next prime is 10201222110029. The reversal of 10201222110020 is 2001122210201.

It is an interprime number because it is at equal distance from previous prime (10201222110011) and next prime (10201222110029).

It can be written as a sum of positive squares in 2 ways, for example, as 4753376690176 + 5447845419844 = 2180224^2 + 2334062^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10201222109977 and 10201222110004.

It is not an unprimeable number, because it can be changed into a prime (10201222110029) 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, 255030552731 + ... + 255030552770.

It is an arithmetic number, because the mean of its divisors is an integer number (1785213869257).

Almost surely, 210201222110020 is an apocalyptic number.

10201222110020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10201222110020 is an abundant number, since it is smaller than the sum of its proper divisors (11221344321064).

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

10201222110020 is a wasteful number, since it uses less digits than its factorization.

10201222110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510061105510 (or 510061105508 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 10201222110020 its reverse (2001122210201), we get a palindrome (12202344320221).

The spelling of 10201222110020 in words is "ten trillion, two hundred one billion, two hundred twenty-two million, one hundred ten thousand, twenty".

Divisors: 1 2 4 5 10 20 510061105501 1020122211002 2040244422004 2550305527505 5100611055010 10201222110020