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22010102020 = 2252207498643
BaseRepresentation
bin10100011111111001…
…111000000100000100
32002210220220000211201
4110133321320010010
5330034041231040
614040012512244
71406300531434
oct243771700404
962726800751
1022010102020
119375146465
12432317b684
1320c9c7b10a
1410cb2502c4
1588c476a9a
hex51fe78104

22010102020 has 24 divisors (see below), whose sum is σ = 46242249984. Its totient is φ = 8800034016.

The previous prime is 22010101973. The next prime is 22010102039. The reversal of 22010102020 is 2020101022.

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 = 22010101988 and 22010102006.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205182 + ... + 293461.

It is an arithmetic number, because the mean of its divisors is an integer number (1926760416).

Almost surely, 222010102020 is an apocalyptic number.

22010102020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22010102020 is an abundant number, since it is smaller than the sum of its proper divisors (24232147964).

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

22010102020 is a wasteful number, since it uses less digits than its factorization.

22010102020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500859 (or 500857 counting only the distinct ones).

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

Adding to 22010102020 its reverse (2020101022), we get a palindrome (24030203042).

The spelling of 22010102020 in words is "twenty-two billion, ten million, one hundred two thousand, twenty".

Divisors: 1 2 4 5 10 20 2207 4414 8828 11035 22070 44140 498643 997286 1994572 2493215 4986430 9972860 1100505101 2201010202 4402020404 5502525505 11005051010 22010102020