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122212020122 = 2123749398553
BaseRepresentation
bin111000111010001100…
…1110110111110011010
3102200110011110212122122
41301310121312332122
54000242234120442
6132050551421242
711554346013443
oct1616431667632
9380404425578
10122212020122
1147914554625
121b828684822
13b6a8566c0a
145cb50322ca
1532a4298dd2
hex1c74676f9a

122212020122 has 8 divisors (see below), whose sum is σ = 183466229556. Its totient is φ = 61056610272.

The previous prime is 122212020121. The next prime is 122212020131. The reversal of 122212020122 is 221020212221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 119521626961 + 2690393161 = 345719^2 + 51869^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 122212020122.

It is not an unprimeable number, because it can be changed into a prime (122212020121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24696803 + ... + 24701750.

Almost surely, 2122212020122 is an apocalyptic number.

122212020122 is a deficient number, since it is larger than the sum of its proper divisors (61254209434).

122212020122 is a wasteful number, since it uses less digits than its factorization.

122212020122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49399792.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 122212020122 its reverse (221020212221), we get a palindrome (343232232343).

The spelling of 122212020122 in words is "one hundred twenty-two billion, two hundred twelve million, twenty thousand, one hundred twenty-two".

Divisors: 1 2 1237 2474 49398553 98797106 61106010061 122212020122