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1022220121013 = 71322350373041
BaseRepresentation
bin11101110000000010001…
…00010011001110110101
310121201112021111112012222
432320001010103032311
5113222001322333023
62101333524452125
7133565365443650
oct16700104231665
93551467445188
101022220121013
11364580677773
1214614354a045
13755198cb340
1437693526897
151b8cc375cc8
hexee011133b5

1022220121013 has 16 divisors (see below), whose sum is σ = 1263758877696. Its totient is φ = 805162671360.

The previous prime is 1022220120991. The next prime is 1022220121033. The reversal of 1022220121013 is 3101210222201.

It is a cyclic number.

It is not a de Polignac number, because 1022220121013 - 212 = 1022220116917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1022220120982 and 1022220121000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022220121033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25166228 + ... + 25206813.

It is an arithmetic number, because the mean of its divisors is an integer number (78984929856).

Almost surely, 21022220121013 is an apocalyptic number.

1022220121013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1022220121013 is a deficient number, since it is larger than the sum of its proper divisors (241538756683).

1022220121013 is a wasteful number, since it uses less digits than its factorization.

1022220121013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50373284.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 1022220121013 its reverse (3101210222201), we get a palindrome (4123430343214).

The spelling of 1022220121013 in words is "one trillion, twenty-two billion, two hundred twenty million, one hundred twenty-one thousand, thirteen".

Divisors: 1 7 13 91 223 1561 2899 20293 50373041 352611287 654849533 4583946731 11233188143 78632317001 146031445859 1022220121013