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22012120029 = 320887351289
BaseRepresentation
bin10100100000000001…
…100100101111011101
32002211001200120000210
4110200001210233131
5330040100320104
614040124043033
71406323635024
oct244001445735
962731616023
1022012120029
1193762a4639
124323993479
1320ca5067c3
1410cb6178bb
1588c724989
hex520064bdd

22012120029 has 8 divisors (see below), whose sum is σ = 29350982080. Its totient is φ = 14674002336.

The previous prime is 22012120021. The next prime is 22012120051. The reversal of 22012120029 is 92002121022.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22012120029 - 23 = 22012120021 is a prime.

It is a super-2 number, since 2×220121200292 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22012119987 and 22012120014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22012120021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112984 + ... + 238305.

It is an arithmetic number, because the mean of its divisors is an integer number (3668872760).

Almost surely, 222012120029 is an apocalyptic number.

It is an amenable number.

22012120029 is a deficient number, since it is larger than the sum of its proper divisors (7338862051).

22012120029 is a wasteful number, since it uses less digits than its factorization.

22012120029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372179.

The product of its (nonzero) digits is 288, while the sum is 21.

The spelling of 22012120029 in words is "twenty-two billion, twelve million, one hundred twenty thousand, twenty-nine".

Divisors: 1 3 20887 62661 351289 1053867 7337373343 22012120029