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10220201020 = 2251144344657
BaseRepresentation
bin10011000010010101…
…11110010000111100
3222101021010000010201
421201022332100330
5131412332413040
64410050213244
7511160163301
oct114112762074
928337100121
1010220201020
114375045327
121b92884224
13c6b4c8533
146cd4c30a8
153ec3a7a9a
hex2612be43c

10220201020 has 24 divisors (see below), whose sum is σ = 21464778384. Its totient is φ = 4087631616.

The previous prime is 10220201011. The next prime is 10220201027. The reversal of 10220201020 is 2010202201.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 10220200988 and 10220201006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10220201027) 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, 206532 + ... + 251188.

It is an arithmetic number, because the mean of its divisors is an integer number (894365766).

Almost surely, 210220201020 is an apocalyptic number.

10220201020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10220201020 is an abundant number, since it is smaller than the sum of its proper divisors (11244577364).

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

10220201020 is a wasteful number, since it uses less digits than its factorization.

10220201020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56109 (or 56107 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 10220201020 its reverse (2010202201), we get a palindrome (12230403221).

The spelling of 10220201020 in words is "ten billion, two hundred twenty million, two hundred one thousand, twenty".

Divisors: 1 2 4 5 10 20 11443 22886 44657 45772 57215 89314 114430 178628 223285 228860 446570 893140 511010051 1022020102 2044040204 2555050255 5110100510 10220201020