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202220202212 = 2277222150079
BaseRepresentation
bin1011110001010101000…
…0110110100011100100
3201022222001222122100222
42330111100312203210
511303121332432322
6232522040423512
720416130233520
oct2742520664344
9638861878328
10202220202212
1178841039a66
1233237177b98
13160b92a4cb2
149b04cdad80
1553d8331e42
hex2f154368e4

202220202212 has 12 divisors (see below), whose sum is σ = 404440404480. Its totient is φ = 86665800936.

The previous prime is 202220202211. The next prime is 202220202251. The reversal of 202220202212 is 212202022202.

202220202212 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (202220202211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3611075012 + ... + 3611075067.

It is an arithmetic number, because the mean of its divisors is an integer number (33703367040).

Almost surely, 2202220202212 is an apocalyptic number.

It is an amenable number.

202220202212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

202220202212 is a wasteful number, since it uses less digits than its factorization.

202220202212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7222150090 (or 7222150088 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 202220202212 its reverse (212202022202), we get a palindrome (414422224414).

The spelling of 202220202212 in words is "two hundred two billion, two hundred twenty million, two hundred two thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 7222150079 14444300158 28888600316 50555050553 101110101106 202220202212