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12233122020 = 22325797101991
BaseRepresentation
bin10110110010010011…
…01010000011100100
31011120112202222122100
423121021222003210
5200023134401040
65341514132100
7612101551530
oct133111520344
934515688570
1012233122020
1152083076a9
122454a21030
1311cc547b52
14840982bc0
154b8e6db30
hex2d926a0e4

12233122020 has 288 divisors, whose sum is σ = 43313227776. Its totient is φ = 2737152000.

The previous prime is 12233122007. The next prime is 12233122043. The reversal of 12233122020 is 2022133221.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12233121984 and 12233122002.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 12343725 + ... + 12344715.

It is an arithmetic number, because the mean of its divisors is an integer number (150393152).

Almost surely, 212233122020 is an apocalyptic number.

12233122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12233122020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21656613888).

12233122020 is an abundant number, since it is smaller than the sum of its proper divisors (31080105756).

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

12233122020 is a wasteful number, since it uses less digits than its factorization.

12233122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1211 (or 1206 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 12233122020 its reverse (2022133221), we get a palindrome (14255255241).

The spelling of 12233122020 in words is "twelve billion, two hundred thirty-three million, one hundred twenty-two thousand, twenty".