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1220101010202 = 234211249386723
BaseRepresentation
bin10001110000010011101…
…011111111001100011010
311022122021221022020011210
4101300103223333030122
5124442231324311302
62332301235003550
7154102145320224
oct21602353771432
94278257266153
101220101010202
11430495237618
121785694395b6
138b093b9ab99
14430a5dc5414
1521b0e75a66c
hex11c13aff31a

1220101010202 has 32 divisors (see below), whose sum is σ = 2447962920000. Its totient is φ = 405408407040.

The previous prime is 1220101010189. The next prime is 1220101010221. The reversal of 1220101010202 is 2020101010221.

It is a super-3 number, since 3×12201010102023 (a number of 37 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2961613 + ... + 3348335.

It is an arithmetic number, because the mean of its divisors is an integer number (76498841250).

Almost surely, 21220101010202 is an apocalyptic number.

1220101010202 is an abundant number, since it is smaller than the sum of its proper divisors (1227861909798).

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

1220101010202 is a wasteful number, since it uses less digits than its factorization.

1220101010202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388398.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1220101010202 its reverse (2020101010221), we get a palindrome (3240202020423).

The spelling of 1220101010202 in words is "one trillion, two hundred twenty billion, one hundred one million, ten thousand, two hundred two".

Divisors: 1 2 3 6 421 842 1249 1263 2498 2526 3747 7494 386723 525829 773446 1051658 1160169 1577487 2320338 3154974 162810383 325620766 483017027 488431149 966034054 976862298 1449051081 2898102162 203350168367 406700336734 610050505101 1220101010202