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11221201001010 = 235711133710199991
BaseRepresentation
bin1010001101001010001110…
…1100110001101000110010
31110201201212210100210201110
42203102203230301220302
52432322004424013020
635510540520414150
72235463551522030
oct243224354615062
943651783323643
1011221201001010
113636980479a50
1213128b1617356
13635201ba2b30
142ab17524d550
15146d510318e0
hexa34a3b31a32

11221201001010 has 512 divisors, whose sum is σ = 37504276217856. Its totient is φ = 2073392640000.

The previous prime is 11221201000987. The next prime is 11221201001069. The reversal of 11221201001010 is 1010010212211.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 112172115 + ... + 112272105.

It is an arithmetic number, because the mean of its divisors is an integer number (73250539488).

Almost surely, 211221201001010 is an apocalyptic number.

11221201001010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11221201001010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18752138108928).

11221201001010 is an abundant number, since it is smaller than the sum of its proper divisors (26283075216846).

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

11221201001010 is a wasteful number, since it uses less digits than its factorization.

11221201001010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100170.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11221201001010 its reverse (1010010212211), we get a palindrome (12231211213221).

The spelling of 11221201001010 in words is "eleven trillion, two hundred twenty-one billion, two hundred one million, one thousand, ten".