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1220202011202 = 231991021944733
BaseRepresentation
bin10001110000011001101…
…101010001101001000010
311022122112222100121111120
4101300121231101221002
5124442433203324302
62332315243453110
7154104512651616
oct21603155215102
94278488317446
101220202011202
11430537252119
12178597227196
138b0abaa21a5
14430b5597346
1521b1855b9bc
hex11c19b51a42

1220202011202 has 16 divisors (see below), whose sum is σ = 2452667361600. Its totient is φ = 404690113872.

The previous prime is 1220202011159. The next prime is 1220202011251. The reversal of 1220202011202 is 2021102020221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 510971173 + ... + 510973560.

It is an arithmetic number, because the mean of its divisors is an integer number (153291710100).

Almost surely, 21220202011202 is an apocalyptic number.

1220202011202 is an abundant number, since it is smaller than the sum of its proper divisors (1232465350398).

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

1220202011202 is a wasteful number, since it uses less digits than its factorization.

1220202011202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021944937.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1220202011202 its reverse (2021102020221), we get a palindrome (3241304031423).

The spelling of 1220202011202 in words is "one trillion, two hundred twenty billion, two hundred two million, eleven thousand, two hundred two".

Divisors: 1 2 3 6 199 398 597 1194 1021944733 2043889466 3065834199 6131668398 203367001867 406734003734 610101005601 1220202011202