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220211002020 = 223523977153071
BaseRepresentation
bin1100110100010110011…
…0010011101010100100
3210001101212211222002210
43031011212103222210
512101443004031040
6245055154003420
721624014430102
oct3150546235244
9701355758083
10220211002020
1185433408159
1236818276570
13179c5633a79
14a930410c72
155adc9be480
hex3345993aa4

220211002020 has 48 divisors (see below), whose sum is σ = 616620549888. Its totient is φ = 58720101120.

The previous prime is 220211001931. The next prime is 220211002027. The reversal of 220211002020 is 20200112022.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 220211001987 and 220211002005.

It is not an unprimeable number, because it can be changed into a prime (220211002027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1362085 + ... + 1515155.

It is an arithmetic number, because the mean of its divisors is an integer number (12846261456).

Almost surely, 2220211002020 is an apocalyptic number.

220211002020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220211002020 is an abundant number, since it is smaller than the sum of its proper divisors (396409547868).

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

220211002020 is a wasteful number, since it uses less digits than its factorization.

220211002020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177060 (or 177058 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 220211002020 its reverse (20200112022), we get a palindrome (240411114042).

The spelling of 220211002020 in words is "two hundred twenty billion, two hundred eleven million, two thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 23977 47954 71931 95908 119885 143862 153071 239770 287724 306142 359655 459213 479540 612284 719310 765355 918426 1438620 1530710 1836852 2296065 3061420 4592130 9184260 3670183367 7340366734 11010550101 14680733468 18350916835 22021100202 36701833670 44042200404 55052750505 73403667340 110105501010 220211002020