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1021012101212 = 22831130712673
BaseRepresentation
bin11101101101110010001…
…00000100100001011100
310121121102002101202120212
432312321010010201130
5113212013044214322
62101014012431552
7133523426444225
oct16667104044134
93547362352525
101021012101212
113640107935a4
12145a66a785b8
137538655971c
14375bad0a24c
151b85b2a40e2
hexedb910485c

1021012101212 has 12 divisors (see below), whose sum is σ = 1786986224016. Its totient is φ = 510444608640.

The previous prime is 1021012101149. The next prime is 1021012101269. The reversal of 1021012101212 is 2121012101201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15323093 + ... + 15389580.

It is an arithmetic number, because the mean of its divisors is an integer number (148915518668).

Almost surely, 21021012101212 is an apocalyptic number.

It is an amenable number.

1021012101212 is a deficient number, since it is larger than the sum of its proper divisors (765974122804).

1021012101212 is a wasteful number, since it uses less digits than its factorization.

1021012101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30720988 (or 30720986 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1021012101212 its reverse (2121012101201), we get a palindrome (3142024202413).

The spelling of 1021012101212 in words is "one trillion, twenty-one billion, twelve million, one hundred one thousand, two hundred twelve".

Divisors: 1 2 4 8311 16622 33244 30712673 61425346 122850692 255253025303 510506050606 1021012101212