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211202012212 = 22211692494237
BaseRepresentation
bin1100010010110010011…
…1101111010000110100
3202012011000211212101121
43010230213233100310
511430020203342322
6241005212033324
721154532324512
oct3045447572064
9665130755347
10211202012212
1181630036834
1234b23162844
1316bbb056979
14a317b394b2
155761b18ec7
hex312c9ef434

211202012212 has 12 divisors (see below), whose sum is σ = 369621129220. Its totient is φ = 105595975296.

The previous prime is 211202012173. The next prime is 211202012227. The reversal of 211202012212 is 212210202112.

It is a happy number.

211202012212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 181839133476 + 29362878736 = 426426^2 + 171356^2 .

It is a congruent number.

It is an unprimeable number.

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, 1162443 + ... + 1331794.

Almost surely, 2211202012212 is an apocalyptic number.

It is an amenable number.

211202012212 is a deficient number, since it is larger than the sum of its proper divisors (158419117008).

211202012212 is a wasteful number, since it uses less digits than its factorization.

211202012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2515410 (or 2515408 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 211202012212 its reverse (212210202112), we get a palindrome (423412214324).

The spelling of 211202012212 in words is "two hundred eleven billion, two hundred two million, twelve thousand, two hundred twelve".

Divisors: 1 2 4 21169 42338 84676 2494237 4988474 9976948 52800503053 105601006106 211202012212