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1022212312231 = 11739472926591
BaseRepresentation
bin11101110000000001001…
…10100000110010100111
310121201111201210210120211
432320000212200302213
5113221442322442411
62101333045240251
7133565242201555
oct16700046406247
93551451723524
101022212312231
11364577223930
12146140a03087
13755180c5c66
1437692492bd5
151b8cb832221
hexee009a0ca7

1022212312231 has 16 divisors (see below), whose sum is σ = 1116927820800. Its totient is φ = 927795297600.

The previous prime is 1022212312213. The next prime is 1022212312237. The reversal of 1022212312231 is 1322132122201.

It is a cyclic number.

It is not a de Polignac number, because 1022212312231 - 221 = 1022210215079 is a prime.

It is a super-2 number, since 2×10222123122312 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022212312237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38428746 + ... + 38455336.

It is an arithmetic number, because the mean of its divisors is an integer number (69807988800).

Almost surely, 21022212312231 is an apocalyptic number.

1022212312231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1022212312231 is a deficient number, since it is larger than the sum of its proper divisors (94715508569).

1022212312231 is a wasteful number, since it uses less digits than its factorization.

1022212312231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32070.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1022212312231 its reverse (1322132122201), we get a palindrome (2344344434432).

The spelling of 1022212312231 in words is "one trillion, twenty-two billion, two hundred twelve million, three hundred twelve thousand, two hundred thirty-one".

Divisors: 1 11 739 4729 8129 26591 52019 292501 3494731 19650749 38442041 125748839 216158239 1383237229 92928392021 1022212312231