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11012222101 = 31355232971
BaseRepresentation
bin10100100000110000…
…10010110010010101
31001102110102211210211
422100120102302111
5140023112101401
65020422045421
7536615225536
oct122030226225
931373384724
1011012222101
114741126501
122173b79871
13106661676a
1476677268d
15446ba5951
hex290612c95

11012222101 has 4 divisors (see below), whose sum is σ = 11367455104. Its totient is φ = 10656989100.

The previous prime is 11012222087. The next prime is 11012222131. The reversal of 11012222101 is 10122221011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11012222101 - 27 = 11012221973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11012222131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177616455 + ... + 177616516.

It is an arithmetic number, because the mean of its divisors is an integer number (2841863776).

Almost surely, 211012222101 is an apocalyptic number.

It is an amenable number.

11012222101 is a deficient number, since it is larger than the sum of its proper divisors (355233003).

11012222101 is an equidigital number, since it uses as much as digits as its factorization.

11012222101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355233002.

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

Adding to 11012222101 its reverse (10122221011), we get a palindrome (21134443112).

The spelling of 11012222101 in words is "eleven billion, twelve million, two hundred twenty-two thousand, one hundred one".

Divisors: 1 31 355232971 11012222101