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1021012212070 = 255910131708321
BaseRepresentation
bin11101101101110010001…
…00011111100101100110
310121121102002121101122201
432312321010133211212
5113212013111241240
62101014015045114
7133523430415354
oct16667104374546
93547362541581
101021012212070
11364010859914
12145a66b1079a
1375386598016
14375bad387d4
151b85b2c6d9a
hexedb911f966

1021012212070 has 32 divisors (see below), whose sum is σ = 1870817588640. Its totient is φ = 401086202880.

The previous prime is 1021012212049. The next prime is 1021012212071. The reversal of 1021012212070 is 702122101201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021012212071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256491 + ... + 1451830.

It is an arithmetic number, because the mean of its divisors is an integer number (58463049645).

Almost surely, 21021012212070 is an apocalyptic number.

1021012212070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021012212070 is a deficient number, since it is larger than the sum of its proper divisors (849805376570).

1021012212070 is a wasteful number, since it uses less digits than its factorization.

1021012212070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1709400.

The product of its (nonzero) digits is 112, while the sum is 19.

Adding to 1021012212070 its reverse (702122101201), we get a palindrome (1723134313271).

The spelling of 1021012212070 in words is "one trillion, twenty-one billion, twelve million, two hundred twelve thousand, seventy".

Divisors: 1 2 5 10 59 118 295 590 1013 2026 5065 10130 59767 119534 298835 597670 1708321 3416642 8541605 17083210 100790939 201581878 503954695 1007909390 1730529173 3461058346 8652645865 17305291730 102101221207 204202442414 510506106035 1021012212070