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12222173898980 = 225611108694949
BaseRepresentation
bin1011000111011011001001…
…0101010110100011100100
31121021102120022110120022122
42301312302111112203210
53100222003004231410
641554442243445112
72401010602003223
oct261666225264344
947242508416278
1012222173898980
113992438597551
1214548a5386798
136a87138a9936
143037b098acba
15162dd7dc3e55
hexb1db25568e4

12222173898980 has 12 divisors (see below), whose sum is σ = 25666565187900. Its totient is φ = 4888869559584.

The previous prime is 12222173898973. The next prime is 12222173899009. The reversal of 12222173898980 is 8989837122221.

12222173898980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 6353948655616 + 5868225243364 = 2520704^2 + 2422442^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 305554347455 + ... + 305554347494.

It is an arithmetic number, because the mean of its divisors is an integer number (2138880432325).

Almost surely, 212222173898980 is an apocalyptic number.

12222173898980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12222173898980 is an abundant number, since it is smaller than the sum of its proper divisors (13444391288920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12222173898980 is a wasteful number, since it uses less digits than its factorization.

12222173898980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611108694958 (or 611108694956 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 62.

The spelling of 12222173898980 in words is "twelve trillion, two hundred twenty-two billion, one hundred seventy-three million, eight hundred ninety-eight thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 611108694949 1222217389898 2444434779796 3055543474745 6111086949490 12222173898980