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10020220111 = 111135180251
BaseRepresentation
bin10010101010100000…
…00110110011001111
3221212022210220220101
421111100012303033
5131010134020421
64334144031531
7503211315466
oct112520066317
927768726811
1010020220111
114282175750
121b379025a7
13c38c49b35
146b0b079dd
153d9a54191
hex255406ccf

10020220111 has 8 divisors (see below), whose sum is σ = 10932248448. Its totient is φ = 9108375000.

The previous prime is 10020220081. The next prime is 10020220129. The reversal of 10020220111 is 11102202001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10020220111 - 219 = 10019695823 is a prime.

It is a super-2 number, since 2×100202201112 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020223111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84736 + ... + 164986.

It is an arithmetic number, because the mean of its divisors is an integer number (1366531056).

Almost surely, 210020220111 is an apocalyptic number.

10020220111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10020220111 is a deficient number, since it is larger than the sum of its proper divisors (912028337).

10020220111 is a wasteful number, since it uses less digits than its factorization.

10020220111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91613.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 10020220111 its reverse (11102202001), we get a palindrome (21122422112).

The spelling of 10020220111 in words is "ten billion, twenty million, two hundred twenty thousand, one hundred eleven".

Divisors: 1 11 11351 80251 124861 882761 910929101 10020220111