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122011222001 = 3110154172031
BaseRepresentation
bin111000110100001101…
…1110111111111110001
3102122221011122021102012
41301220123313333301
53444334333101001
6132015015532305
711546360163254
oct1615033677761
9378834567365
10122011222001
1147821176a69
121b79138a095
13b675a90566
145c964c309b
1532918332bb
hex1c686f7ff1

122011222001 has 16 divisors (see below), whose sum is σ = 127430946816. Its totient is φ = 116688600000.

The previous prime is 122011221977. The next prime is 122011222027. The reversal of 122011222001 is 100222110221.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-122011222001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122016222001) 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, 1657856 + ... + 1729886.

It is an arithmetic number, because the mean of its divisors is an integer number (7964434176).

Almost surely, 2122011222001 is an apocalyptic number.

It is an amenable number.

122011222001 is a deficient number, since it is larger than the sum of its proper divisors (5419724815).

122011222001 is a wasteful number, since it uses less digits than its factorization.

122011222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72704.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 122011222001 its reverse (100222110221), we get a palindrome (222233332222).

The spelling of 122011222001 in words is "one hundred twenty-two billion, eleven million, two hundred twenty-two thousand, one".

Divisors: 1 31 101 541 3131 16771 54641 72031 1693871 2232961 7275131 38968771 225529061 1208031901 3935845871 122011222001