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2111221000122 = 231360145036499
BaseRepresentation
bin11110101110001110100…
…100111110011110111010
321110211102121210001121220
4132232032210332132322
5234042240034000442
64253514225012510
7305350011256443
oct36561644763672
97424377701556
102111221000122
11744400240403
122a1203784136
131241199c9150
147427dcac2ca
1539db73aceec
hex1eb8e93e7ba

2111221000122 has 32 divisors (see below), whose sum is σ = 4554811464000. Its totient is φ = 648525571200.

The previous prime is 2111221000111. The next prime is 2111221000153. The reversal of 2111221000122 is 2210001221112.

It is a super-2 number, since 2×21112210001222 (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22471372 + ... + 22565127.

It is an arithmetic number, because the mean of its divisors is an integer number (142337858250).

Almost surely, 22111221000122 is an apocalyptic number.

2111221000122 is an abundant number, since it is smaller than the sum of its proper divisors (2443590463878).

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

2111221000122 is a wasteful number, since it uses less digits than its factorization.

2111221000122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45037118.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2111221000122 its reverse (2210001221112), we get a palindrome (4321222221234).

The spelling of 2111221000122 in words is "two trillion, one hundred eleven billion, two hundred twenty-one million, one hundred twenty-two", and thus it is an aban number.

Divisors: 1 2 3 6 13 26 39 78 601 1202 1803 3606 7813 15626 23439 46878 45036499 90072998 135109497 270218994 585474487 1170948974 1756423461 3512846922 27066935899 54133871798 81200807697 162401615394 351870166687 703740333374 1055610500061 2111221000122