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2021220022 = 21567644933
BaseRepresentation
bin111100001111001…
…0101111010110110
312012212021121121211
41320132111322312
513114413020042
6532321432034
7101042041513
oct17036257266
95185247554
102021220022
11947a20578
12484a9b61a
13262996ba3
1415262030a
15bc6a5017
hex78795eb6

2021220022 has 8 divisors (see below), whose sum is σ = 3033769536. Its totient is φ = 1009963512.

The previous prime is 2021220017. The next prime is 2021220023. The reversal of 2021220022 is 2200221202.

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

It is a junction number, because it is equal to n+sod(n) for n = 2021219984 and 2021220011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021220023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319333 + ... + 325600.

It is an arithmetic number, because the mean of its divisors is an integer number (379221192).

Almost surely, 22021220022 is an apocalyptic number.

2021220022 is a deficient number, since it is larger than the sum of its proper divisors (1012549514).

2021220022 is a wasteful number, since it uses less digits than its factorization.

2021220022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646502.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 2021220022 is about 44957.9806263582. The cubic root of 2021220022 is about 1264.3613083947.

Adding to 2021220022 its reverse (2200221202), we get a palindrome (4221441224).

The spelling of 2021220022 in words is "two billion, twenty-one million, two hundred twenty thousand, twenty-two".

Divisors: 1 2 1567 3134 644933 1289866 1010610011 2021220022