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2220022212222 = 23715211319747
BaseRepresentation
bin100000010011100011101…
…000101010011001111110
321212020021011110022011010
4200103203220222121332
5242333101141242342
64415510352340050
7316251135310443
oct40234350523176
97766234408133
102220022212222
11786562732411
122ba308b44626
13131468a374a9
1479641b999ca
153cb3410929c
hex204e3a2a67e

2220022212222 has 16 divisors (see below), whose sum is σ = 4502580262272. Its totient is φ = 729584764440.

The previous prime is 2220022212179. The next prime is 2220022212223. The reversal of 2220022212222 is 2222122200222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220022212223) 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, 2605659448 + ... + 2605660299.

It is an arithmetic number, because the mean of its divisors is an integer number (281411266392).

Almost surely, 22220022212222 is an apocalyptic number.

2220022212222 is an abundant number, since it is smaller than the sum of its proper divisors (2282558050050).

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

2220022212222 is a wasteful number, since it uses less digits than its factorization.

2220022212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5211319823.

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 2220022212222 its reverse (2222122200222), we get a palindrome (4442144412444).

The spelling of 2220022212222 in words is "two trillion, two hundred twenty billion, twenty-two million, two hundred twelve thousand, two hundred twenty-two".

Divisors: 1 2 3 6 71 142 213 426 5211319747 10422639494 15633959241 31267918482 370003702037 740007404074 1110011106111 2220022212222