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122123322020 = 2257872309443
BaseRepresentation
bin111000110111100011…
…1100000001010100100
3102200012222120112201202
41301233013200022210
54000102032301040
6132034102342032
711552221052420
oct1615707401244
9380188515652
10122123322020
1147879482407
121b802a2a918
13b69307c72b
145ca7343b80
15329b5c8015
hex1c6f1e02a4

122123322020 has 24 divisors (see below), whose sum is σ = 293095973184. Its totient is φ = 41870853216.

The previous prime is 122123322007. The next prime is 122123322023. The reversal of 122123322020 is 20223321221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 122123321983 and 122123322001.

It is not an unprimeable number, because it can be changed into a prime (122123322023) 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 7 ways as a sum of consecutive naturals, for example, 436154582 + ... + 436154861.

It is an arithmetic number, because the mean of its divisors is an integer number (12212332216).

Almost surely, 2122123322020 is an apocalyptic number.

122123322020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122123322020 is an abundant number, since it is smaller than the sum of its proper divisors (170972651164).

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

122123322020 is a wasteful number, since it uses less digits than its factorization.

122123322020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872309459 (or 872309457 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 122123322020 its reverse (20223321221), we get a palindrome (142346643241).

The spelling of 122123322020 in words is "one hundred twenty-two billion, one hundred twenty-three million, three hundred twenty-two thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 872309443 1744618886 3489237772 4361547215 6106166101 8723094430 12212332202 17446188860 24424664404 30530830505 61061661010 122123322020