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122210030145 = 3571277911437
BaseRepresentation
bin111000111010001001…
…0010001001001000001
3102200110000201202220210
41301310102101021001
54000241231431040
6132050441024333
711554323054660
oct1616422211101
9380400652823
10122210030145
1147913415515
121b827a850a9
13b6a801b208
145cb4a74dd7
1532a4004480
hex1c74491241

122210030145 has 32 divisors (see below), whose sum is σ = 223645010688. Its totient is φ = 55823632128.

The previous prime is 122210030123. The next prime is 122210030149. The reversal of 122210030145 is 541030012221.

It is not a de Polignac number, because 122210030145 - 28 = 122210029889 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (122210030149) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 321634 + ... + 589803.

It is an arithmetic number, because the mean of its divisors is an integer number (6988906584).

Almost surely, 2122210030145 is an apocalyptic number.

122210030145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122210030145 is a deficient number, since it is larger than the sum of its proper divisors (101434980543).

122210030145 is a wasteful number, since it uses less digits than its factorization.

122210030145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912729.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 122210030145 its reverse (541030012221), we get a palindrome (663240042366).

The spelling of 122210030145 in words is "one hundred twenty-two billion, two hundred ten million, thirty thousand, one hundred forty-five".

Divisors: 1 3 5 7 15 21 35 105 1277 3831 6385 8939 19155 26817 44695 134085 911437 2734311 4557185 6380059 13671555 19140177 31900295 95700885 1163905049 3491715147 5819525245 8147335343 17458575735 24442006029 40736676715 122210030145