Search a number
-
+
122212102020 = 223510331971799
BaseRepresentation
bin111000111010001101…
…0001010111110000100
3102200110011122000222220
41301310122022332010
54000242244231040
6132050553252340
711554346504301
oct1616432127604
9380404560886
10122212102020
1147914600108
121b8287040b0
13b6a8595288
145cb50540a8
1532a42b32d0
hex1c7468af84

122212102020 has 48 divisors (see below), whose sum is σ = 342525321600. Its totient is φ = 32558328576.

The previous prime is 122212102003. The next prime is 122212102037. The reversal of 122212102020 is 20201212221.

It is an interprime number because it is at equal distance from previous prime (122212102003) and next prime (122212102037).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 923920 + ... + 1047879.

It is an arithmetic number, because the mean of its divisors is an integer number (7135944200).

Almost surely, 2122212102020 is an apocalyptic number.

122212102020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122212102020 is an abundant number, since it is smaller than the sum of its proper divisors (220313219580).

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

122212102020 is a wasteful number, since it uses less digits than its factorization.

122212102020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1972844 (or 1972842 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 122212102020 its reverse (20201212221), we get a palindrome (142413314241).

The spelling of 122212102020 in words is "one hundred twenty-two billion, two hundred twelve million, one hundred two thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1033 2066 3099 4132 5165 6198 10330 12396 15495 20660 30990 61980 1971799 3943598 5915397 7887196 9858995 11830794 19717990 23661588 29576985 39435980 59153970 118307940 2036868367 4073736734 6110605101 8147473468 10184341835 12221210202 20368683670 24442420404 30553025505 40737367340 61106051010 122212102020