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122201012121 = 3118333442379
BaseRepresentation
bin111000111001110111…
…1110111011110011001
3102200102101202121111220
41301303233313132121
54000231424341441
6132045515442253
711554153315236
oct1616357673631
9380371677456
10122201012121
1147909316101
121b824a56389
13b6a61b15c6
145cb37a878d
1532a3322466
hex1c73bf7799

122201012121 has 8 divisors (see below), whose sum is σ = 162948499680. Its totient is φ = 81460432992.

The previous prime is 122201012119. The next prime is 122201012137. The reversal of 122201012121 is 121210102221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122201012121 - 21 = 122201012119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122201012121.

It is not an unprimeable number, because it can be changed into a prime (122201012191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1685691 + ... + 1756688.

It is an arithmetic number, because the mean of its divisors is an integer number (20368562460).

Almost surely, 2122201012121 is an apocalyptic number.

It is an amenable number.

122201012121 is a deficient number, since it is larger than the sum of its proper divisors (40747487559).

122201012121 is a wasteful number, since it uses less digits than its factorization.

122201012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3454215.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 122201012121 its reverse (121210102221), we get a palindrome (243411114342).

The spelling of 122201012121 in words is "one hundred twenty-two billion, two hundred one million, twelve thousand, one hundred twenty-one".

Divisors: 1 3 11833 35499 3442379 10327137 40733670707 122201012121