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1022201131 = 7909116063
BaseRepresentation
bin111100111011011…
…000110100101011
32122020110012100011
4330323120310223
54043140414011
6245233152351
734221365140
oct7473306453
92566405304
101022201131
11485007926
122463bb6b7
13133a11453
1499a8a3c7
155eb19621
hex3ced8d2b

1022201131 has 8 divisors (see below), whose sum is σ = 1168431104. Its totient is φ = 876021480.

The previous prime is 1022201093. The next prime is 1022201153. The reversal of 1022201131 is 1311022201.

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

It is a cyclic number.

It is not a de Polignac number, because 1022201131 - 227 = 887983403 is a prime.

It is a super-2 number, since 2×10222011312 = 2089790304435358322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1022201171) 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, 55606 + ... + 71668.

It is an arithmetic number, because the mean of its divisors is an integer number (146053888).

Almost surely, 21022201131 is an apocalyptic number.

1022201131 is a deficient number, since it is larger than the sum of its proper divisors (146229973).

1022201131 is an equidigital number, since it uses as much as digits as its factorization.

1022201131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25161.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1022201131 is about 31971.8803169285. The cubic root of 1022201131 is about 1007.3462770593.

Adding to 1022201131 its reverse (1311022201), we get a palindrome (2333223332).

The spelling of 1022201131 in words is "one billion, twenty-two million, two hundred one thousand, one hundred thirty-one".

Divisors: 1 7 9091 16063 63637 112441 146028733 1022201131