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122010211010020 = 2256100510550501
BaseRepresentation
bin11011101111011110110111…
…010010010100010111100100
3121000000001200101102221100211
4123233132313102110113210
5111443003403004310040
61111254414523145204
734461642524635564
oct3357366722242744
9530001611387324
10122010211010020
1135970270351a53
1211826490975204
13531068a2bbcb8
14221b47baccda4
15e18b73cc28ea
hex6ef7b74945e4

122010211010020 has 12 divisors (see below), whose sum is σ = 256221443121084. Its totient is φ = 48804084404000.

The previous prime is 122010211009933. The next prime is 122010211010029. The reversal of 122010211010020 is 20010112010221.

It can be written as a sum of positive squares in 2 ways, for example, as 16774332539904 + 105235878470116 = 4095648^2 + 10258454^2 .

It is not an unprimeable number, because it can be changed into a prime (122010211010029) 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, 3050255275231 + ... + 3050255275270.

It is an arithmetic number, because the mean of its divisors is an integer number (21351786926757).

Almost surely, 2122010211010020 is an apocalyptic number.

122010211010020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122010211010020 is an abundant number, since it is smaller than the sum of its proper divisors (134211232111064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122010211010020 is a wasteful number, since it uses less digits than its factorization.

122010211010020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6100510550510 (or 6100510550508 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 122010211010020 its reverse (20010112010221), we get a palindrome (142020323020241).

The spelling of 122010211010020 in words is "one hundred twenty-two trillion, ten billion, two hundred eleven million, ten thousand, twenty".

Divisors: 1 2 4 5 10 20 6100510550501 12201021101002 24402042202004 30502552752505 61005105505010 122010211010020