Search a number
-
+
121220120320033 = 7371393367132033
BaseRepresentation
bin11011100011111111000010…
…001101100001100000100001
3120220012112022121102022020011
4123203333002031201200201
5111342032301300220113
61105451430545444521
734350602404610320
oct3343770215414041
9526175277368204
10121220120320033
113569618979a569
1211719331040741
1352840152c8a97
1421d11298400b7
15e0333092763d
hex6e3fc2361821

121220120320033 has 16 divisors (see below), whose sum is σ = 143305139367040. Its totient is φ = 100367471609856.

The previous prime is 121220120320007. The next prime is 121220120320093. The reversal of 121220120320033 is 330023021022121.

It is a cyclic number.

It is not a de Polignac number, because 121220120320033 - 25 = 121220120320001 is a prime.

It is a super-2 number, since 2×1212201203200332 (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121220120319986 and 121220120320013.

It is not an unprimeable number, because it can be changed into a prime (121220120320093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1683530016 + ... + 1683602017.

It is an arithmetic number, because the mean of its divisors is an integer number (8956571210440).

Almost surely, 2121220120320033 is an apocalyptic number.

It is an amenable number.

121220120320033 is a deficient number, since it is larger than the sum of its proper divisors (22085019047007).

121220120320033 is a wasteful number, since it uses less digits than its factorization.

121220120320033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3367132216.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 121220120320033 its reverse (330023021022121), we get a palindrome (451243141342154).

The spelling of 121220120320033 in words is "one hundred twenty-one trillion, two hundred twenty billion, one hundred twenty million, three hundred twenty thousand, thirty-three".

Divisors: 1 7 37 139 259 973 5143 36001 3367132033 23569924231 124583885221 468031352587 872087196547 3276219468109 17317160045719 121220120320033