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122020225 = 5247113919
BaseRepresentation
bin1110100010111…
…10000110000001
322111121021021121
413101132012001
5222214121400
620035152241
73011104045
oct721360601
9274537247
10122020225
1162971668
1234a45681
131c383622
14122c4025
15aaa421a
hex745e181

122020225 has 24 divisors (see below), whose sum is σ = 156061440. Its totient is φ = 94590720.

The previous prime is 122020211. The next prime is 122020229. The reversal of 122020225 is 522020221.

It is not a de Polignac number, because 122020225 - 25 = 122020193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122020199 and 122020208.

It is not an unprimeable number, because it can be changed into a prime (122020229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 132316 + ... + 133234.

It is an arithmetic number, because the mean of its divisors is an integer number (6502560).

Almost surely, 2122020225 is an apocalyptic number.

It is an amenable number.

122020225 is a deficient number, since it is larger than the sum of its proper divisors (34041215).

122020225 is a wasteful number, since it uses less digits than its factorization.

122020225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1089 (or 1084 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 122020225 is about 11046.2765219779. The cubic root of 122020225 is about 495.9949718208.

Adding to 122020225 its reverse (522020221), we get a palindrome (644040446).

The spelling of 122020225 in words is "one hundred twenty-two million, twenty thousand, two hundred twenty-five".

Divisors: 1 5 25 47 113 235 565 919 1175 2825 4595 5311 22975 26555 43193 103847 132775 215965 519235 1079825 2596175 4880809 24404045 122020225