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1201200122210 = 251123474782657
BaseRepresentation
bin10001011110101101000…
…110110100100101100010
311020211111200221122011012
4101132231012310211202
5124140024212402320
62315453531220522
7152532600400424
oct21365506644542
94224450848135
101201200122210
11423476176730
121749735a7742
13893711229aa
14421d1a8a814
15213a524c4c5
hex117ad1b4962

1201200122210 has 32 divisors (see below), whose sum is σ = 2461273299072. Its totient is φ = 417808737280.

The previous prime is 1201200122183. The next prime is 1201200122219. The reversal of 1201200122210 is 122210021021.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1201200122219) 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, 237388799 + ... + 237393858.

It is an arithmetic number, because the mean of its divisors is an integer number (76914790596).

Almost surely, 21201200122210 is an apocalyptic number.

1201200122210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1201200122210 is an abundant number, since it is smaller than the sum of its proper divisors (1260073176862).

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

1201200122210 is a wasteful number, since it uses less digits than its factorization.

1201200122210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474782698.

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

Adding to 1201200122210 its reverse (122210021021), we get a palindrome (1323410143231).

The spelling of 1201200122210 in words is "one trillion, two hundred one billion, two hundred million, one hundred twenty-two thousand, two hundred ten".

Divisors: 1 2 5 10 11 22 23 46 55 110 115 230 253 506 1265 2530 474782657 949565314 2373913285 4747826570 5222609227 10445218454 10920001111 21840002222 26113046135 52226092270 54600005555 109200011110 120120012221 240240024442 600600061105 1201200122210