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2211012202121 = 4183964275479
BaseRepresentation
bin100000001011001010100…
…110001100111010001001
321211101000020112100212022
4200023022212030322021
5242211123110431441
64411420332454225
7315511641425432
oct40131246147211
97741006470768
102211012202121
11782759824478
122b861361a375
13130661190b78
14790292da489
153c7a810184b
hex202ca98ce89

2211012202121 has 8 divisors (see below), whose sum is σ = 2267638934400. Its totient is φ = 2154514022560.

The previous prime is 2211012202109. The next prime is 2211012202127. The reversal of 2211012202121 is 1212022101122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2211012202121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2211012202121.

It is not an unprimeable number, because it can be changed into a prime (2211012202127) by changing a digit.

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, 32103341 + ... + 32172138.

It is an arithmetic number, because the mean of its divisors is an integer number (283454866800).

Almost surely, 22211012202121 is an apocalyptic number.

It is an amenable number.

2211012202121 is a deficient number, since it is larger than the sum of its proper divisors (56626732279).

2211012202121 is an equidigital number, since it uses as much as digits as its factorization.

2211012202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64276359.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2211012202121 its reverse (1212022101122), we get a palindrome (3423034303243).

The spelling of 2211012202121 in words is "two trillion, two hundred eleven billion, twelve million, two hundred two thousand, one hundred twenty-one".

Divisors: 1 41 839 34399 64275479 2635294639 53927126881 2211012202121