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10022012120021 = 1137215571142279
BaseRepresentation
bin1001000111010110111001…
…1110001110101111010101
31022111002120020220210211212
42101311232132032233111
52303200040100320041
633152014313111205
72053031542312316
oct221655636165725
938432506823755
1010022012120021
113214347628650
12115a3bb6b8505
135790c1662005
142690d474660d
15125a676678eb
hex91d6e78ebd5

10022012120021 has 16 divisors (see below), whose sum is σ = 11229124141440. Its totient is φ = 8864260044480.

The previous prime is 10022012120009. The next prime is 10022012120119. The reversal of 10022012120021 is 12002121022001.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10022012120021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10022012119978 and 10022012120005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10022012120221) 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, 8202560 + ... + 9344838.

It is an arithmetic number, because the mean of its divisors is an integer number (701820258840).

Almost surely, 210022012120021 is an apocalyptic number.

10022012120021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10022012120021 is a deficient number, since it is larger than the sum of its proper divisors (1207112021419).

10022012120021 is a wasteful number, since it uses less digits than its factorization.

10022012120021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163884.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 10022012120021 its reverse (12002121022001), we get a palindrome (22024133142022).

The spelling of 10022012120021 in words is "ten trillion, twenty-two billion, twelve million, one hundred twenty thousand, twenty-one".

Divisors: 1 11 37 407 21557 237127 797609 1142279 8773699 12565069 42264323 464907553 24624108403 270865192433 911092010911 10022012120021